The World of Computer Software/World_Of_Computer_Software-02-385-Vol-1of3.iso/i/inter33a.zip/INTERRUP.D

Text File | 1993-01-03 | 274KB | 7,270 lines

Interrupt List, part 4 of 8
This compilation is Copyright (c) 1989,1990,1991,1992,1993 Ralf Brown
----------2180-------------------------------
INT 21 - European MSDOS 4.0 - "AEXEC" - EXECUTE PROGRAM IN BACKGROUND
    AH = 80h
    CX = mode
        0000h place child in zombie mode on exit to preserve exit code
        0001h discard child process and exit code on termination
    DS:DX -> ASCIZ full program name
    ES:BX -> parameter block (as for AX=4B00h)
Return: CF clear if successful
        AX = Command Subgroup ID (CSID)
    CF set on error
        AX = error code (see AH=59h)
Desc:    asynchronously execute a program, creating a new process for it
Notes:    this function is called by the DETACH command
    there is a system-wide limit of 32 processes
    the CSID is used to identify all processes that have been spawned by
      a given process, whether directly or indirectly
    programs to be run in the background must use the new executable format
      (see AH=4Bh)
    background processes may only perform asynchronous (background) EXECs,
      either this function or AX=4B04h
    background processes may execute INT 11, INT 12, INT 21, INT 2A, and
      INT 2F at any time; they may execute INT 10 and INT 16 only while
      they have opened a popup screen via INT 2F/AX=1401h; no other
      interrupts may be executed from the background
    background processes may not use drive B: or overlay their code
      segments
SeeAlso: AH=4Bh,AX=8700h,INT 2F/AX=1400h"POPUP"
----------218080-----------------------------
INT 21 - PCW Weather Card interface - UNINSTALL PCW.COM AND FREE MEMORY
    AX = 8080h
Return: ???
SeeAlso: AX=7070h/BX=7070h
----------2181-------------------------------
INT 21 - European MSDOS 4.0 - "FREEZE" - STOP A PROCESS
    AH = 81h
    BX = flag (00h freeze command subtree, 01h only specified process)
    CX = Process ID of head of command subtree
Return: CF clear if successful
    CF set on error
        AX = error code (no such process)
Desc:    temporarily suspend a process or a process and all of its children
Note:    if BX=0001h, this call will not return until the process is actually
      frozen, which may not be until after it unblocks from an I/O
      operation
SeeAlso: AH=82h,AH=89h,AX=8E00h,INT 15/AX=101Dh
----------2182-------------------------------
INT 21 - European MSDOS 4.0 - "RESUME" - RESTART A PROCESS
    AH = 82h
    BX = flag (00h resume command subtree, 01h only specified process)
    CX = Process ID of head of command subtree
Return: CF clear if successful
    CF set on error
        AX = error code (no such process)
Desc:    restart a previously-suspended process or a process and all of its
      children
SeeAlso: AX=81h,INT 15/AX=101Eh
----------2183-------------------------------
INT 21 - European MSDOS 4.0 - "PARTITION" - GET/SET FOREGROUND PARTITION SIZE
    AH = 83h
    AL = function
        00h get size
        01h set new size
        BX = new size in paragraphs
Return: CF clear if successful
        BX = current size (function 00h) or old size (function 01h)
    CF set on error
        AX = error code (01h,07h,0Dh)(see AH=59h)
Desc:    specify or determine how much memory may be allocated by the foreground
      process
Note:    if the partition size is set to 0000h, no partition management is done
      and all memory allocation is compatible with DOS 3.2.
    the partition size can be changed regardless of what use is being made
      of the changed memory; subsequent allocations will follow the
      partition rules (foreground processes may allocate only foreground
      memory; background processes allocate background memory first, then
      foreground memory)
SeeAlso: AH=48h,AH=4Ah
----------2183-------------------------------
INT 21 - VIRUS - "SVC" - INSTALLATION CHECK
    AH = 83h
Return: DX = 1990h if resident
SeeAlso: AH=76h,AH=84h"VIRUS"
----------2184-------------------------------
INT 21 - VIRUS - "SVC 5.0" or "SVC 6.0" - INSTALLATION CHECK
    AH = 84h
Return: DX = 1990h if resident
        BH = version number (major in high nybble, minor in low)
SeeAlso: AH=83h"VIRUS",AH=89h"VIRUS"
----------218400-----------------------------
INT 21 - European MSDOS 4.0 - "CREATMEM" - CREATE A SHARED MEMORY AREA
    AX = 8400h
    BX = size in bytes (0000h = 65536)
    CX = flags
        bit 6: zero-initialize segment
    DS:DX -> ASCIZ name (must begin with "\SHAREMEM\")
Return: CF clear if successful
        AX = segment address of shared memory global object
    CF set on error
        AX = error code (06h,08h) (see AH=59h)
Desc:    create an area of memory which may be accessed by multiple processes
Notes:    shared memory objects are created as special files (thus the
      restriction on the name)
    on successful creation, the reference count is set to 1
SeeAlso: AX=8401h,AX=8402h,INT 15/AX=DE19h
----------218401-----------------------------
INT 21 - European MSDOS 4.0 - "GETMEM" - OBTAIN ACCESS TO SHARED MEMORY AREA
    AX = 8401h
    CX = flags
        bit 7: writable segment (ignored by MSDOS 4.0)
    DS:DX -> ASCIZ name (must begin with "\SHAREMEM\")
Return: CF clear if successful
        AX = segment address of shared memory global object
        CX = size in bytes
    CF set on error
        AX = error code (invalid name)
Desc:    get address of a previously-created area of memory which may be
      accessed by multiple processes
Note:    this call increments the reference count for the shared memory area
SeeAlso: AX=8400h,AX=8402h
----------218402-----------------------------
INT 21 - European MSDOS 4.0 - "RELEASEMEM" - FREE SHARED MEMORY AREA
    AX = 8402h
    BX = handle (segment address of shared memory object)
Return: CF clear if successful
    CF set on error
        AX = error code (no such name)
Desc:    indicate that the specified area of shared memory will no longer be
      used by the caller
Note:    the reference count is decremented and the shared memory area is
      deallocated if the new reference count is zero
SeeAlso: AX=8400h,AX=8401h,INT 15/AX=DE19h
----------2185-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 85h
    ???
Return: ???
----------2186-------------------------------
INT 21 - European MSDOS 4.0 - "SETFILETABLE" - INSTALL NEW FILE HANDLE TABLE
    AH = 86h
    BX = total number of file handles in new table
Return: CF clear if successful
    CF set on error
        AX = error code (06h,08h) (see AH=59h)
Desc:    adjust the size of the per-process open file table, thus raising or
      lowering the limit on the number of files the caller can open
      simultaneously
Notes:    any currently-open files are copied to the new table
    if the table is increased beyond the default 20 handles, only the
      first 20 will be inherited by child processes
    error 06h is returned if the requested number of handles exceeds
      system limits or would require closing currently-open files
SeeAlso: AH=26h,AH=67h
----------2187-------------------------------
INT 21 - European MSDOS 4.0 - "GETPID" - GET PROCESS IDENTIFIER
    AH = 87h
Return: AX = PID
    BX = parent process's PID
    CX = Command Subgroup ID (CSID)
Desc:    determine an identifier by which to access the calling process
Notes:    called by MS C v5.1 getpid() function
    this function apparently must return AX=0001h for INT 21/AH=80h to
      succeed
    one possible check for European MSDOS 4.0 is to issue this call with
      AL=00h and check whether AL is nonzero on return
SeeAlso: AH=30h,AH=62h,AH=80h
----------2188-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 88h
    ???
Return: ???
----------2189-------------------------------
INT 21 - European MSDOS 4.0 - SLEEP
    AH = 89h
    CX = time in milliseconds or 0000h to give up time slice
Return: CF clear if successful
        CX = 0000h
    CF set on error
        AX = error code (interrupted system call)
        CX = sleep time remaining
Desc:    suspend the calling process for the specified duration
Notes:    the sleep interval is rounded up to the next higher increment of the
      scheduler clock, and may be extended further if other processes are
      running
    this call may be interrupted by signals (see AH=8Dh)
    reportedly called by Microsoft C 4.0 startup code
    background processes have higher priority than the foreground process,
      and should thus periodically yield the CPU
SeeAlso: AH=81h,INT 15/AX=1000h,INT 2F/AX=1680h,INT 7A/BX=000Ah
----------2189-------------------------------
INT 21 - VIRUS - "Vriest" - INSTALLATION CHECK
    AH = 89h
Return: AX = 0123h if resident
SeeAlso: AH=84h"VIRUS",AH=90h"VIRUS"
----------218A-------------------------------
INT 21 - European MSDOS 4.0 - "CWAIT" - WAIT FOR CHILD TO TERMINATE
    AH = 8Ah
    BL = range (00h command subtree, 01h any child)
    BH = suspend flag
        00h suspend if children exist but none are dead
        01h return if no dead children
    CX = Process ID of head of command subtree
Return: CF clear if successful
        AH = termination type
        00h normal termination
        01h aborted by Control-C
        02h aborted by I/O error
        03h terminate and stay resident
        04h aborted by signal
        05h aborted by program error
        AL = return code from child or aborting signal
        BX = PID of child (0000h if no dead children)
    CF set on error
        AX = error code (no child,interrupted system call)
Desc:    get return code from an asynchronously-executed child program,
      optionally waiting if no return code is available
SeeAlso: AH=4Bh,AH=4Dh,AH=80h,AH=8Dh
----------218B-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 8Bh
    ???
Return: ???
----------218C-------------------------------
INT 21 - European MSDOS 4.0 - SET SIGNAL HANDLER
    AH = 8Ch
    AL = signal number (see below)
    BL = action (see below)
    DS:DX -> signal handler
Return: CF clear if successful
        AL = previous action
        ES:BX -> previous signal handler
    CF set on error
        AX = error code (01h,invalid SigNumber or Action) (see AH=59h)
Desc:    set the routine which will be invoked on a number of exceptional
      conditions
Note:    all signals will be sent to the most recently installed handler
SeeAlso: AH=8Dh

Values for signal number:
 01h    SIGINTR        Control-C or user defined interrupt key
 08h    SIGTERM        program termination
 09h    SIGPIPE        broken pipe
 0Dh    SIGUSER1    reserved for user definition
 0Eh    SIGUSER2    reserved for user definition

Values for signal action:
 00h    SIG_DFL        terminate process on receipt
 01h    SIG_IGN        ignore signal
 02h    SIG_GET        signal is accepted
 03h    SIG_ERR        sender gets error
 04h    SIG_ACK        acknowledge received signal and clear it, but don't
            change current setting

Signal handler is called with:
    AL = signal number
    AH = signal argument
Return: RETF, CF set: terminate process
    RETF, CF clear, ZF set: abort any interrupted system call with an error
    RETF, CF clear, ZF clear: restart any interrupted system call
    IRET: restart any interrupted system call
Note:    the signal handler may also perform a nonlocal GOTO by resetting the
      stack pointer and jumping; before doing so, it should dismiss the
      signal by calling this function with BL=04h
----------218D-------------------------------
INT 21 - European MSDOS 4.0 - SEND SIGNAL
    AH = 8Dh
    AL = signal number (see AH=8Ch)
    BH = signal argument
    BL = action
        00h send to entire command subtree
        01h send only to specified process
    DX = Process ID
Return: CF clear if successful
    CF set on error
        AX = error code (01h,06h)(see AH=59h)
Desc:    invoke the exceptional-condition handler for the specified process
Note:    error 06h may be returned if one or more of the affected processes
      have an error handler for the signal
SeeAlso: AH=8Ch
----------218E00-----------------------------
INT 21 - European MSDOS 4.0 - "SETPRI" - GET/SET PROCESS PRIORITY
    AX = 8E00h
    BH = 00h
    BL = action
        00h set priority for command subtree
        01h set priority for specified process only
    CX = Process ID
    DH = 00h
    DL = change in priority (00h to get priority)
Return: CF clear if successful
        DL = process priority
        DH destroyed
    CF set on error
        AX = error code (01h,no such process)(see AH=59h)
Desc:    specify or determine the execution priority of the specified process
      or the process and all of its children
SeeAlso: AH=81h
----------218F-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 8Fh
    ???
Return: ???
----------2190-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 90h
    ???
Return: ???
----------2190-------------------------------
INT 21 - VIRUS - "Carioca" - INSTALLATION CHECK
    AH = 90h
Return: AH = 01h if resident
SeeAlso: AH=89h"VIRUS",AX=9753h"VIRUS"
----------2191-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 91h
    ???
Return: ???
----------2192-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 92h
    ???
Return: ???
----------2193-------------------------------
INT 21 - European MSDOS 4.0 - "PIPE" - CREATE A NEW PIPE
    AH = 93h
    CX = size in bytes
Return: CF clear if successful
        AX = read handle
        BX = write handle
    CF set on error
        AX = error code (08h) (see AH=59h)
Desc:    create a communications channel which may be used for interprocess
      data and command exchanges
SeeAlso: AH=3Ch,AH=3Fh,AH=40h,AH=84h
----------2194-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 94h
    ???
Return: ???
----------2195-------------------------------
INT 21 - European MSDOS 4.0 - HARD ERROR PROCESSING
    AH = 95h
    AL = new state
       00h enabled
       01h disabled, automatically fail hard errors
Return: AX = previous setting
Desc:    specify whether hard (critical) errors should automatically fail the
      system call or invoke an INT 24
SeeAlso: INT 24
----------2196-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 96h
    ???
Return: ???
----------2197-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 97h
    ???
Return: ???
----------219753-----------------------------
INT 21 - VIRUS - "Nina" - INSTALLATION CHECK
    AX = 9753h
Return: never (executes original program) if virus resident
SeeAlso: AH=90h"VIRUS",AX=A1D5h"VIRUS"
----------2198-------------------------------
INT 21 U - European MSDOS 4.0 - ???
    AH = 98h
    ???
Return: ???
----------2199-------------------------------
INT 21 u - European MSDOS 4.0 - "PBLOCK" - BLOCK A PROCESS
    AH = 99h
    DS:BX -> memory location to block on
    CX = timeout in milliseconds
    DH = nonzero if interruptible
Return: CF clear if awakened by event
        AX = 0000h
    CF set if unusual wakeup
        ZF set if timeout, clear if interrupted by signal
        AX = nonzero
Desc:    suspend calling process until another process sends a "restart" signal
      or a timeout occurs
SeeAlso: AH=9Ah,INT 2F/AX=0802h
----------219A-------------------------------
INT 21 u - European MSDOS 4.0 - "PRUN" - UNBLOCK A PROCESS
    AH = 9Ah
    DS:BX -> memory location processes may have blocked on
Return: AX = number of processes awakened
    ZF set if no processes awakened
Desc:    restart all processes waiting for the specified "restart" signal
SeeAlso: AH=99h,INT 2F/AX=0802h
----------21A0-------------------------------
INT 21 - Attachmate Extra - GET 3270 DISPLAY STATE
    AH = A0h
Return: AL = display status
        bit     7  : 0=windowed, 1=enlarged
        bits 6-3: current screen profile number 0-9
        bits 2-0: active window number
            0=PC, 1-4=host B-E, 5-6=notepad F-G
    BX = host window status
        bit 15:  reserved
        bit 14:  0=host E window installed, 1=not
        bit 13:  0=host E terminal on, 1=off
        bit 12:  0=host E window displayed, 1=not
        bit 11:  reserved
        bit 10:  0=host D window installed, 1=not
        bit     9:  0=host D terminal on, 1=off
        bit     8:  0=host D window displayed, 1=not
        bit     7:  reserved
        bit     6:  0=host C window installed, 1=not
        bit     5:  0=host C terminal on, 1=off
        bit     4:  0=host C window displayed, 1=not
        bit     3:  reserved
        bit     2:  0=host B window installed, 1=not
        bit     1:  0=host B terminal on, 1=off
        bit     0:  0=host B window displayed, 1=not
Note:    Attachmate Extra is a 3270 emulator by Attachmate Corporation
SeeAlso: AH=A1h
----------21A1-------------------------------
INT 21 - Attachmate Extra - SET 3270 DISPLAY STATE
    AH = A1h
    AL = set status byte
        bit     7  : 0=windowed, 1=enlarged
        bits 6-3: current screen profile number 0-9
        bits 2-0: active window number
            0=PC, 1-4=host B-E, 5-6=notepad F-G
SeeAlso: AH=A0h,AH=A2h
----------21A1D5-----------------------------
INT 21 - VIRUS - "789"/"Filehider" - INSTALLATION CHECK
    AX = A1D5h
Return: AX = 900Dh if resident
SeeAlso: AX=9753h,AX=A55Ah
----------21A2-------------------------------
INT 21 - Attachmate Extra - SET HOST WINDOW STATE
    AH = A2h
    AL = set status byte
        bit     7  : 0=power off, 1=power on
        bit     6  : 0=not installed, 1=installed
        bits 5-3: reserved
        bits 2-0: window number 1-4=host B-E
SeeAlso: AH=A1h
----------21A3-------------------------------
INT 21 - Attachmate Extra - SEND KEYSTROKES TO HOST WINDOW
    AH = A3h
    AL = window number (1-4=host B-E)
    CX = 0001h
    DS:BX -> keystroke buffer
    DL = zero if keystroke buffer contains host function code,
         non-zero if keystroke buffer contains ASCII character
Return: CX = zero if character sent, non-zero if not
    BX incremented if CX=0

Values for host function code:
    00h=reserved    10h=PF16    20h=Clear    30h=SysRq
    01h=PF1        11h=PF17    21h=Print    31h=ErInp
    02h=PF2        12h=PF18    22h=Left    32h=ErEof
    03h=PF3        13h=PF19    23h=Right    33h=Ident
    04h=PF4        14h=PF20    24h=Up        34h=Test
    05h=PF5        15h=PF21    25h=Down    35h=Reset
    06h=PF6        16h=PF22    26h=Home    36h=DevCncl
    07h=PF7        17h=PF23    27h=Fast Left    37h=Dup
    08h=PF8        18h=PF24    28h=Fast Right    38h=FldMark
    09h=PF9        19h=Alt on    29h=Bksp    39h=Enter
    0Ah=PF10    1Ah=Alt off    2Ah=Insert    3Ah=CrSel
    0Bh=PF11    1Bh=Shift on    2Bh=Delete
    0Ch=PF12    1Ch=Shift off    2Ch=Backtab
    0Dh=PF13    1Dh=PA1        2Dh=Tab
    0Eh=PF14    1Eh=PA2        2Eh=Newline
    0Fh=PF15    1Fh=PA3        2Fh=Attn
----------21A4-------------------------------
INT 21 - Attachmate Extra - GET HOST WINDOW BUFFER ADDRESS
    AH = A4h
    AL = window number (1-4=host B-E)
Return: DS:BX -> 3270 display buffer
SeeAlso: AH=A5h,AH=B8h
----------21A5-------------------------------
INT 21 - Attachmate Extra - GET HOST WINDOW CURSOR POSITION
    AH = A5h
    AL = window number (1-4=host B-E)
Return: BX = cursor position (80 * row + column, where 0:0 is upper left)
Note:    if the host window is configured with the Extended Attribute (EAB)
      feature, multiply the cursor position by 2 to obtain the byte offset
      into the display buffer
SeeAlso: AH=A4h
----------21A55A-----------------------------
INT 21 - VIRUS - "Eddie-2" - INSTALLATION CHECK
    AX = A55Ah
Return: AX = 5AA5h if resident
SeeAlso: AX=A1D5h,AX=AA00h
----------21AA00-----------------------------
INT 21 - VIRUS - "Blinker" - INSTALLATION CHECK
    AX = AA00h
Return: AX = 00AAh if resident
SeeAlso: AX=A55Ah,AX=AA03h
----------21AA03-----------------------------
INT 21 - VIRUS - "Backtime" - INSTALLATION CHECK
    AX = AA03h
Return: AX = 03AAh if resident
SeeAlso: AX=AA00h,AH=ABh
----------21AB-------------------------------
INT 21 - VIRUS - "600" or "Voronezh"-family - INSTALLATION CHECK
    AH = ABh
Return: AX = 5555h if resident
SeeAlso: AX=AA03h,AX=BBBBh"VIRUS"
----------21AF-------------------------------
INT 21 - Attachmate Extra - GET TRANSLATE TABLE ADDRESS
    AH = AFh
Return: DS:BX -> translate tables (see below)

Format of translate tables:
Offset    Size    Description
 00h 256 BYTEs    ASCII to 3270 buffer code translate table
100h 256 BYTEs    3270 buffer code to ASCII translate table
200h 256 BYTEs    3270 buffer code to EBCDIC translate table
300h 256 BYTEs    EBCDIC to 3270 buffer code translate table
----------21B5-------------------------------
INT 21 - Novell NetWare shell 3.01 - TASK MODE CONTROL
    AH = B5h
    AL = subfunction
        03h get task mode
        Return: AH = 00h
            AL = current task mode byte
        04h get task mode pointer
        Return: ES:BX -> task mode byte
Notes:    the task mode byte specifies how task cleanup should be performed, but
      is declared to be version-dependent
    allows a program to disable the automatic cleanup for programs managing
      task swapping, etc.

Values for task mode byte in version 3.01:
 00h-03h reserved
 04h     no task cleanup
----------21B6-------------------------------
INT 21 - Novell NetWare - FILE SERVICES - EXTENDED FILE ATTRIBUTES
    AH = B6h
    AL = subfunction
        00h get extended file attributes
        01h set extended file attributes
        CL = extended file attributes (see below)
    DS:DX -> ASCIZ pathname (max 255 bytes)
Return: CF set on error
        AL = error code
        8Ch caller lacks privileges
        FEh not permitted to search directory
        FFh file not found
    CF clear if successful
        AL = 00h (success)
        CL = current extended file attributes (see below)
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=4300h,AH=E3h/SF=0Fh

Bitmask of extended file attributes:
 bits 2-0: search mode (executables only)
    000 none (use shell's default search)
    001 search on all opens without path
    010 do not search
    011 search on read-only opens without path
    100 reserved
    101 search on all opens
    110 reserved
    111 search on all read-only opens
 bit 3: reserved
 bit 4: transactions on file tracked
 bit 5: file's FAT indexed
 bit 6: read audit (to be implemented)
 bit 7: write audit (to be implemented)
----------21B8-------------------------------
INT 21 - Attachmate Extra - DISABLE HOST BUFFER UPDATES
    AH = B8h
    AL = window number (1-4=host B-E)
    DL = 01h
Notes:    only valid in CUT mode
    next AID keystroke (eg Enter) enables host buffer updates
SeeAlso: AH=A4h
----------21B800-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET DEFAULT CAPTURE FLAGS
    AX = B800h
    CX = size of reply buffer (01h-3Fh)
    ES:BX -> reply buffer for capture flags table (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 2.0+
SeeAlso: AX=B801h,AX=B802h,AH=DFh/DL=00h,AH=DFh/DL=04h

Format of capture flags table:
Offset    Size    Description
 00h    BYTE    status (used internally, should be set to 00h)
 01h    BYTE    print flags
        bit 2: print capture file if interrupted by loss of connection
            3: no automatic form feed after print job
            6: printing control sequences interpreted by print service
            7: print banner page before capture file
 02h    BYTE    tab size (01h-12h, default 08h)
 03h    BYTE    printer number on server (00h-04h, default 00h)
 04h    BYTE    number of copies to print (00h-FFh, default 01h)
 05h    BYTE    form type required in printer (default 00h)
 06h    BYTE    reserved
 07h 13 BYTEs    text to be placed on banner page
 14h    BYTE    reserved
 15h    BYTE    default local printer (00h = LPT1)
 16h    WORD    timeout in clock ticks for flushing capture file on inactivity
        (big-endian)
        0000h = never timeout
 18h    BYTE    flush capture file on LPT close if nonzero
 19h    WORD    maximum lines per page (big-endian)
 1Bh    WORD    maximum characters per line (big-endian)
 1Dh 13 BYTEs    name of form required in printer
 2Ah    BYTE    LPT capture flag
        00h inactive, FFh LPT device is being captured
 2Bh    BYTE    file capture flag
        00h if no file specified, FFh if capturing to file
 2Ch    BYTE    timing out (00h if no timeout in effect, FFh if timeout counter
        running)
 2Dh    DWORD    address of printer setup string (big-endian)
 31h    DWORD    address of printer reset string (big-endian)
 35h    BYTE    target connection ID
 36h    BYTE    capture in progress if FFh
 37h    BYTE    job queued for printing if FFh
 38h    BYTE    print job valid if FFh
 39h    DWORD    bindery object ID of print queue if previous byte FFh
 3Dh    WORD    print job number (1-999) `````(big-endian)
----------21B801-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET DEFAULT CAPTURE FLAGS
    AX = B801h
    CX = size of buffer (01h-3Fh)
    ES:BX -> buffer containing capture flags table (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 2.0+
SeeAlso: AX=B800h,AX=B803h,AH=DFh/DL=00h,AH=DFh/DL=04h
----------21B802-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET SPECIFIC CAPTURE FLAGS
    AX = B802h
    CX = size of reply buffer (01h-3Fh)
    DH = LPT port (00h-02h)
    ES:BX -> reply buffer for capture flags table (see AX=B800h)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B803h,AH=DFh/DL=00h,AH=DFh/DL=04h
----------21B803-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET SPECIFIC CAPTURE FLAGS
    AX = B803h
    CX = size of buffer (01h-3Fh)
    DH = LPT port (00h-02h)
    ES:BX -> buffer containing capture flags table (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B803h,AH=DFh/DL=00h,AH=DFh/DL=04h
----------21B804-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET DEFAULT LOCAL PRINTER
    AX = B804h
Return: DH = default LPT port (00h-02h)
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B805h,AH=DFh/DL=00h
----------21B805-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET DEFAULT LOCAL PRINTER
    AX = B805h
    DH = new default LPT port (00h-02h)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B804h,AH=DFh/DL=00h
----------21B806-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET CAPTURE PRINT QUEUE
    AX = B806h
    DH = LPT port (00h-02h)
    BX:CX = print queue's object ID
Return: AL = status
        00h successful
        FFh job already set
Desc:    specify the print queue on which a print job is to be placed the next
      time a capture is started on the given printer port
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B801h,AX=B807h,AX=E009h
----------21B807-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET CAPTURE PRINT JOB
    AX = B807h
    DH = LPT port (00h-02h)
    BX = job number (see AH=E3h/SF=68h)
    SI:DI:CX = NetWare file handle (see AH=E3h/SF=68h)
Return: AL = status
        00h successful
        FFh job already queued
Desc:    specify the capture file and print job to be used for subsequent
      output to the given printer port
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B801h,AX=B806h,AX=E009h,AH=E3h/SF=68h
----------21B808-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET BANNER USER NAME
    AX = B808h
    ES:BX -> 12-byte buffer for user name
Return: AL = status
        00h successful
Desc:    get the user name which is printed on the banner page
Notes:    this function is supported by Advanced NetWare 2.1+
    the default name is the login name of the user
SeeAlso: AX=B809h
----------21B809-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET BANNER USER NAME
    AX = B809h
    ES:BX -> 12-byte buffer containing user name
Return: AL = status
        00h successful
Desc:    specify the user name which is printed on the banner page
Notes:    this function is supported by Advanced NetWare 2.1+
    the default name is the login name of the user
SeeAlso: AX=B808h
----------21BB-------------------------------
INT 21 - Novell NetWare - WORKSTATION - SET END OF JOB STATUS
    AH = BBh
    AL = new EOJ flag
        00h disable EOJs
        01h enable EOJs
Return: AL = old EOJ flag
Desc:    specify whether the network shell should automatically generate an
      End of Job call when the root command processor regains control
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=D6h
----------21BBBB-----------------------------
INT 21 - VIRUS - "Hey You" - INSTALLATION CHECK
    AX = BBBBh
Return: AX = 6969h
SeeAlso: AH=ABh"VIRUS",AH=BEh"VIRUS"
----------21BC-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOG PHYSICAL RECORD
    AH = BCh
    AL = flags
        bit 0: lock as well as log record
        1: non-exclusive lock
    BX = file handle
    CX:DX = starting offset in file
    SI:DI = length of region to lock
    BP = timeout in timer ticks (1/18 sec)
        0000h = don't wait if already locked
Return: AL = status
        00h successful
        96h no dynamic memory for file
        FEh timed out
        FFh failed
Desc:    add the specified physical record to the log table, optionally locking
      it
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=5Ch,AH=BDh,AH=BEh,AH=BFh,AH=C2h,AH=D0h
----------21BD-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE PHYSICAL RECORD
    AH = BDh
    BX = file handle
    CX:DX = starting offset in file
    SI:DI = length of record
Return: AL = status
        00h successful
        FFh record not locked
Desc:    unlock the specified physical record but do not remove it from log
      table
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=BCh,AH=BEh"NetWare",AH=C0h,AH=C3h,AH=D2h
----------21BE-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR PHYSICAL RECORD
    AH = BEh
    BX = file handle
    CX:DX = starting offset within file
    SI:DI = record length in bytes
Return: AL = status
        00h successful
        FFh specified record not locked
Desc:    unlock the physical record and remove it from the log table
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=5Ch,AH=BCh,AH=BDh,AH=C1h,AH=C4h,AH=D4h
----------21BE-------------------------------
INT 21 - VIRUS - "Datalock" - INSTALLATION CHECK
    AH = BEh
Return: AX = 1234h if resident
SeeAlso: AX=BBBBh,AX=BE00h
----------21BE00-----------------------------
INT 21 - VIRUS - "USSR-1049" - INSTALLATION CHECK
    AX = BE00h
    CF set
Return: CF clear if resident
SeeAlso: AH=BEh"VIRUS",AH=C0h"VIRUS"
----------21BF-------------------------------
INT 21 - Novell NetWare 4.6, Alloy NTNX - LOG/LOCK RECORD (FCB)
    AH = BFh
    AL = flags
        bit 0: lock as well as log record
        1: non-exclusive lock
    DS:DX -> opened FCB (see AH=0Fh)
    BX:CX = offset
    BP = lock timeout in timer ticks (1/18 sec)
    SI:DI = length
Return: AL = error code (see AH=BCh)
SeeAlso: AH=BCh,AH=C0h"NetWare",AH=C2h"NetWare"
----------21C0-------------------------------
INT 21 - Novell NetWare 4.6, Alloy NTNX - RELEASE RECORD (FCB)
    AH = C0h
    DS:DX -> FCB (see AH=0Fh)
    BX:CX = offset
Return: AL = error code (see AH=BCh)
Note:    unlocks record but does not remove it from log table
SeeAlso: AH=BDh,AH=BFh,AH=C1h"NetWare",AH=C3h
----------21C0-------------------------------
INT 21 - VIRUS - "Slow"/"Zerotime", "Solano" - INSTALLATION CHECK
    AH = C0h
Return: AX = 0300h if "Slow"/"Zerotime" resident
    AX = 1234h if "Solano" resident
SeeAlso: AX=BE00h,AH=C1h"VIRUS",AX=C301h"VIRUS"
----------21C1-------------------------------
INT 21 - Novell NetWare 4.6, Alloy NTNX - CLEAR RECORD (FCB)
    AH = C1h
    DS:DX -> opened FCB (see AH=0Fh)
    BX:CX = offset
Return: AL = error code (see AH=BCh)
Note:    unlocks record and removes it from log table
SeeAlso: AH=BEh,AH=C0h"NetWare",AH=C4h
----------21C1-------------------------------
INT 21 - VIRUS - "Solano" - ???
    AH = C1h
    ???
Return: ???
SeeAlso: AH=C0h"VIRUS"
----------21C2-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOCK PHYSICAL RECORD SET
    AH = C2h
    AL = flags
        bit 1: non-exclusive lock
    BP = lock timeout in timer ticks (1/18 sec) 0000h = no wait
Return: AL = status
        00h successful
        FEh timed out
        FFh failed
Desc:    attempt to lock all physical records listed in the log table
Notes:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
    status FFh will be retuend if one or more physical records have been
      exclusively locked by another process
SeeAlso: AH=BFh,AH=C3h,AH=D1h
----------21C2-------------------------------
INT 21 - VIRUS - "Scott's Valley" - ???
    AH = C2h
    ???
Return: ???
SeeAlso: AH=C0h"VIRUS"
----------21C3-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE PHYSICAL RECRD SET
    AH = C3h
Desc:    unlock all currently-locked physical records in the log table, but do
      not remove them from the table
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=BDh,AH=C0h,AH=C2h"NetWare",AH=C4h,AH=D3h
----------21C301DXF1F1-----------------------
INT 21 - VIRUS - "905"/"Backfont" - INSTALLATION CHECK
    AX = C301h
    DX = F1F1h
Return: DX = 0E0Eh if resident
SeeAlso: AH=C0h"VIRUS",AX=C500h"VIRUS"
----------21C4-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR PHYSICAL RECORD SET
    AH = C4h
Desc:    unlock all physical records in the log table and remove them from the
      log table
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=BEh,AH=C1h,AH=D5h
----------21C500-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - OPEN SEMAPHORE
    AX = C500h
    DS:DX -> semaphore name (counted string, max 127 bytes)
    CL = initial value for semaphore
Return: AL = status
        00h successful
        BL = number of processes having semaphore open
        CX:DX = semaphore handle
        FEh invalid name length
        FFh invalid semaphore value
Notes:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
    the semaphore's value is incremented by AX=C503h and decremented by
      AX=C502h
SeeAlso: AX=C501h,AX=C502h,AX=C503h,AX=C504h
----------21C500-----------------------------
INT 21 - VIRUS - "Sverdlov" - INSTALLATION CHECK
    AX = C500h
Return: AX = 6731h if resident
SeeAlso: AX=C301h"VIRUS",AH=C6h"VIRUS"
----------21C501-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - EXAMINE SEMAPHORE
    AX = C501h
    CX:DX = semaphore handle
Return: AL = status
        00h successful
        CX = semaphore value (-127 to 127)
        DL = count of processes which have the semaphore open
        FFh invalid handle
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C502h,AX=C504h
----------21C502-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - WAIT ON SEMAPHORE
    AX = C502h
    CX:DX = semaphore handle
    BP = timeout limit in timer ticks (1/18 sec)
        0000h return immediately if semaphore already zero or negative
Return: AL = status
        00h successful
        FEh timeout
        FFh invalid handle
Desc:    decrement the semaphore's value, optionally waiting until its value
      becomes positive before decrementing
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C501h,AX=C503h
----------21C503-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - SIGNAL SEMAPHORE
    AX = C503h
    CX:DX = semaphore handle
Return: AL = status
        00h successful
        01h semaphore value overflowed
        FFh invalid handle
Desc:    increment the semaphore's value and signal the first process (if any)
      in the queue waiting on the semaphore
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C502h
----------21C504-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLOSE SEMAPHORE
    AX = C504h
    CX:DX = semaphore handle
Return: AL = status
        00h successful
        FFh invalid handle
Desc:    decrement the semaphore's open count, and delete the semaphore if the
      count reaches zero
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C501h
----------21C6-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - GET OR SET LOCK MODE
    AH = C6h
    AL = subfunction
        00h set old "compatibility" mode (default)
        01h set new extended locks mode
        02h get lock mode
Return: AL = current lock mode
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
    the locking mode should be 01h for NetWare 4.61+ and Advanced
      NetWare 1.0+ locking calls, and 00h for all older calls
SeeAlso: AH=BCh,AH=C4h,AH=D0h
----------21C6-------------------------------
INT 21 - VIRUS - "Socha" - INSTALLATION CHECK
    AH = C6h
Return: AL = 55h if resident
SeeAlso: AX=C500h"VIRUS",AX=C603h
----------21C603-----------------------------
INT 21 - VIRUS - "Yankee" or "MLTI" - INSTALLATION CHECK
    AX = C603h
    CF set
Return: CF clear if resident
SeeAlso: AX=C500h"VIRUS",AX=C700h"VIRUS"
----------21C700-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - BEGIN TRANSACTION
    AX = C700h
Return: CF clear if successful
        AL = 00h
    CF set on error
        AL = error code
        96h out of memory
        FEh implicit transaction already active, converted to explicit
        FFh explicit transaction already active
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C701h,AX=C702h,AX=C703h
----------21C700-----------------------------
INT 21 - VIRUS - "MH-757" - INSTALLATION CHECK
    AX = C700h
Return: AL = 07h if resident
SeeAlso: AX=C603h"VIRUS",AH=CBh"VIRUS"
----------21C701-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - END TRANSACTION
    AX = C701h
Return: AL = status
        00h successful
        CX:DX = transaction number
        FDh transaction tracking disabled
        FEh transaction ended records locked
        FFh no explicit transaction active
    CF clear except when AL=FFh
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C700h"NetWare",AX=C703h
----------21C702-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - INSTALLATION CHECK
    AX = C702h
Return: AL = status
        00h not available
        01h available
        FDh available but disabled
Desc:    determine whether the default file server supports TTS
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
----------21C703-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - ABORT TRANSACTION
    AX = C703h
Return: CF clear if successful
        AL = 00h
    CF set on error
        AL = error code
        FDh transaction tracking disabled, no backout
        FEh transaction ended records locked
        FFh no explicit transaction active
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C700h"NetWare",AX=C701h,AX=C704h
----------21C704-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - TRANSACTION STATUS
    AX = C704h
    CX:DX = transaction number (see AX=C701h)
Return: AL = status
        00h successful
        FFh not yet written to disk
Desc:    verify that a transaction has actually been written to disk
Notes:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
    transactions are written to disk in the order in which they are ended,
      but it may take as much as five seconds for the data to be written
SeeAlso: AX=C700h"NetWare",AX=C701h,AX=C703h
----------21C705-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - GET APPLICTN THRESHOLDS
    AX = C705h
Return: AL = status
        00h successful
    CL = maximum logical record locks (default 0)
    CH = maximum physical record locks (default 0)
Desc:    get the per-application limits on record locks allowed before an
      implicit transaction is begun
Notes:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
    if either limit is FFh, implicit transactions are disabled for the
      corresponding lock type
SeeAlso: AX=C706h,AX=C707h
----------21C706-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - SET APPLICTN THRESHOLDS
    AX = C706h
    CL = maximum logical record locks (default 0)
    CH = maximum physical record locks (default 0)
Return: AL = status
        00h successful
Desc:    specify the per-application limits on record locks allowed before an
      implicit transaction is begun
Notes:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
    if either limit is set to FFh, implicit transactions are disabled for
      the corresponding lock type
SeeAlso: AX=C705h,AX=C708h
----------21C707-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - GET WORKSTN THRESHOLDS
    AX = C707h
Return: AL = status
        00h successful
    CL = maximum logical record locks (default 0)
    CH = maximum physical record locks (default 0)
Desc:    get the per-workstation limits on record locks allowed before an
      implicit transaction is begun
Notes:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
    if either limit is FFh, implicit transactions are disabled for the
      corresponding lock type
SeeAlso: AX=C705h,AX=C708h
----------21C708-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - SET WORKSTN THRESHOLDS
    AX = C708h
    CL = maximum logical record locks (default 0)
    CH = maximum physical record locks (default 0)
Return: AL = status
        00h successful
Desc:    specify the per-workstation limits on record locks allowed before an
      implicit transaction is begun
Notes:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
    if either limit is set to FFh, implicit transactions are disabled for
      the corresponding lock type
SeeAlso: AX=C706h,AX=C707h
----------21C8-------------------------------
INT 21 - Novell NetWare 4.0 - BEGIN LOGICAL FILE LOCKING
    AH = C8h
    if function C6h lock mode 00h:
        DL = mode
        00h no wait
        01h wait
    if function C6h lock mode 01h:
        BP = timeout in timer ticks (1/18 sec)
Return: AL = error code
SeeAlso: AH=C9h
----------21C9-------------------------------
INT 21 - Novell NetWare 4.0 - END LOGICAL FILE LOCKING
    AH = C9h
Return: AL = error code
SeeAlso: AH=C8h
----------21CA-------------------------------
INT 21 - Novell NetWare 4.0, Alloy NTNX - LOG/LOCK PERSONAL FILE (FCB)
    AH = CAh
    DS:DX -> FCB (see AH=0Fh)
    if function C6h lock mode 01h:
        AL = log and lock flag
        00h log file only
        01h lock as well as log file
        BP = lock timeout in timer ticks (1/18 sec)
Return: AL = error code
        00h successful
        96h no dynamic memory for file
        FEh timeout
        FFh failed
SeeAlso: AH=CBh
----------21CA15-----------------------------
INT 21 - VIRUS - "Piter" - ???
    AX = CA15h
    ???
Return: ???
SeeAlso: AH=CCh"VIRUS"
----------21CB-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOCK FILE SET
    AH = CBh
    if function C6h lock mode 00h:
        DL = mode
        00h no wait
        01h wait
    if function C6h lock mode 01h:
        BP = lock timeout in timer ticks (1/18 sec) 0000h = no wait
Return: AL = status
        00h successful
        FEh timed out
        FFh failed
Desc:    attempt to lock all files listed in the log table
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    status FFh will be returned if one or more of the files have already
      been exclusively locked by another process
SeeAlso: AH=CAh,AH=CDh,AH=D1h,AH=EBh
----------21CB-------------------------------
INT 21 - VIRUS - "Milous" - INSTALLATION CHECK
    AH = CBh
Return: AL = 07h if resident
SeeAlso: AX=C700h"VIRUS",AX=CB02h
----------21CB02-----------------------------
INT 21 - VIRUS - "Witcode" - INSTALLATION CHECK
    AX = CB02h
Return: AX = 02CBh if resident
SeeAlso: AH=CBh"VIRUS",AH=CCh"VIRUS"
----------21CC-------------------------------
INT 21 - Novell NetWare 4.0, Alloy NTNX - RELEASE FILE (FCB)
    AH = CCh
    DS:DX -> FCB (see AH=0Fh)
Return: none
Note:    unlocks file, but does not remove it from the log table or close it
SeeAlso: AH=CAh,AH=CDh
----------21CC-------------------------------
INT 21 - VIRUS - "Westwood" - INSTALLATION CHECK
    AH = CCh
Return: AX = 0700h if resident
SeeAlso: AX=CB02h,AH=CDh"VIRUS",AX=D000h"VIRUS"
----------21CD-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE FILE SET
    AH = CDh
Return: none
Desc:    unlock all files listed in the log table, but don't remove them from
      the table
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=CBh,AH=CCh,AH=CFh,AH=D3h
----------21CD-------------------------------
INT 21 - VIRUS - "Westwood" - ???
    AH = CDh
    ???
Return: ???
SeeAlso: AH=CCh"VIRUS"
----------21CE-------------------------------
INT 21 - Novell NetWare 4.0, Alloy NTNX - CLEAR FILE (FCB)
    AH = CEh
    DS:DX -> FCB (see AH=0Fh)
Return: AL = error code
Note:    unlocks file and removes it from log table, then closes all opened and
      logged occurrences
SeeAlso: AH=CAh,AH=CFh,AH=EDh"NetWare"
----------21CF-------------------------------
INT 21 - LANstep - ???
    AH = CFh
    ???
Return: ???
Note:    LANstep is a redesign of the Waterloo Microsystems PORT network
----------21CF-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR FILE SET
    AH = CFh
Return: AL = 00h
Desc:    unlock and remove all files from log table
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=CAh,AH=CEh,AH=EBh"NetWare"
----------21D0-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOG LOGICAL RECORD
    AH = D0h
    DS:DX -> record string (counted string, max 99 data bytes)
    if function C6h lock mode 01h: (Novell, NTNX only)
        AL = flags
        bit 0: lock as well as log the record
        bit 1: non-exclusive lock
        BP = lock timeout in timer ticks (1/18 sec)
Return: AL = status
        00h successful
        96h no dynamic memory for file
        FEh timed out
        FFh unsuccessful
Desc:    add the specified logical record name to the log table, and optionally
      lock the record
Notes:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+,
      Banyan VINES, and Alloy NTNX
    locks on logical record names are advisory and may be ignored by other
      applications
SeeAlso: AH=BCh,AH=D1h,AH=D2h,AH=D4h,AH=EBh
----------21D000-----------------------------
INT 21 - VIRUS - "Fellowship" - INSTALLATION CHECK
    AX = D000h
Return: BX = 1234h if resident
SeeAlso: AH=CCh"VIRUS",AH=D5h"VIRUS",AX=D5AAh
----------21D1-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOCK LOGICAL RECORD SET
    AH = D1h
    AL = lock type (00h exclusive, 01h shareable)
    if function C6h lock mode 00h:
        DL = mode
        00h no wait
        01h wait
    if function C6h lock mode 01h: (Novell only)
       BP = lock timeout in timer ticks (1/18 sec) 0000h = no wait
        0000h no wait
Return: AL = status (see AH=CBh)
Desc:    attempt to lock all logical record names listed in the log table
Notes:    this function is supported by NetWare 4.6+, Advanced Netware 1.0+,
      Banyan VINES, and Alloy NTNX
    status FFh will be returned if one or more logical records have been
      exclusively locked by another process
    locks on logical record names are advisory and may be ignored by other
      applications
SeeAlso: AH=C2h,AH=CBh,AH=D0h,AH=D3h,AH=D5h
----------21D2-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE LOGICAL RECORD
    AH = D2h
    DS:DX -> semaphore identifier (counted string up to 99 chars long)
Return: AL = status
        00h successful
        FFh no such record
Desc:    unlock the logical record name but do not remove it from the log table
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
      Banyan VINES, and Alloy NTNX
    locks on logical record names are advisory and may be ignored by other
      applications
SeeAlso: AH=BDh,AH=D0h,AH=D3h,AH=D4h
----------21D3-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE LOGICAL RECORD SET
    AH = D3h
Desc:    unlock all currently-locked logical record names in the log table, but
      do not remove them from the table
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
      Banyan VINES, and Alloy NTNX
    locks on logical record names are advisory and may be ignored by other
      applications
SeeAlso: AH=C3h,AH=CDh,AH=D1h,AH=D2h,AH=D5h
----------21D4-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR LOGICAL RECORD
    AH = D4h
    DS:DX -> logical record name (counted string up to 99 chars long)
Return: AL = status
        00h successful
        FFh no such record name
Desc:    unlock and remove the logical record name from the log table
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
      Banyan VINES, and Alloy NTNX
    locks on logical record names are advisory and may be ignored by other
      applications
SeeAlso: AH=BEh,AH=D0h,AH=D2h,AH=D5h
----------21D5-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR LOGICAL RECORD SET
    AH = D5h
Return: AL = error code (see AH=D4h)
Desc:    unlock and remove all logical record name from the log table
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
      Banyan VINES, and Alloy NTNX
    locks on logical record names are advisory and may be ignored by other
      applications
SeeAlso: AH=D1h,AH=D3h,AH=D4h
----------21D5-------------------------------
INT 21 - VIRUS - "Carfield" - ???
    AH = D5h
    ???
Return: ???
SeeAlso: AX=D5AAh,AH=F3h"Carfield"
----------21D5AA-----------------------------
INT 21 - VIRUS - "Diamond-A", "Diamond-B" - INSTALLATION CHECK
    AX = D5AAh
Return: AX = 2A55h if "Diamond-A" resident
    AX = 2A03h if "Diamond-B"-family virus resident
SeeAlso: AX=D000h,AH=D5h"VIRUS",AX=D5AAh/BP=DEAAh
----------21D5AABPDEAA-----------------------
INT 21 - VIRUS - "Dir" - INSTALLATION CHECK
    AX = D5AAh
    BP = DEAAh
Return: SI = 4321h if resident
SeeAlso: AX=D5AAh,AX=DADAh"VIRUS"
----------21D6-------------------------------
INT 21 - Novell NetWare - WORKSTATION - END OF JOB
    AH = D6h
    BX = job flag (0000h current job, FFFFh all processes on workstation)
Return: AL = error code
Desc:    unlocks and clears all locked or logged files and records held by the
      process(es), closes all files, resets error and lock modes, and
      releases all network resources
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=BBh,AH=D7h
----------21D7-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - SYSTEM LOGOUT
    AH = D7h
Return: AL = error code
Desc:    this function closes the caller's open files, logs it out from all
      file servers, detaches the workstation from all non-default file
      servers, and maps a drive to the default server's SYS:LOGIN directory
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=D6h,AH=E3h/SF=14h,AH=F1h
----------21D8-------------------------------
INT 21 - Novell NetWare, Banyan VINES - ALLOCATE RESOURCE
    AH = D8h
    DL = resource number
Return: AL = status
        00h successful
        FFh unsucessful
SeeAlso: AH=D9h
----------21D9-------------------------------
INT 21 - Novell NetWare, Banyan VINES - DEALLOCATE RESOURCE
    AH = D9h
    DL = resource number
Return:    AL = status (see AH=D8h)
SeeAlso: AH=D8h
----------21DA-------------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME INFO WITH NUMBER
    AH = DAh
    DL = volume number
    ES:DI -> reply buffer (see below)
Return: AL = 00h
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=36h,AH=E2h/SF=15h,AH=E3h/SF=E9h

Format of reply buffer:
Offset    Size    Description
 00h    WORD    sectors/block
 02h    WORD    total blocks on volume
 04h    WORD    unused blocks
 06h    WORD    total directory entries
 08h    WORD    unused directory entries
 0Ah 16 BYTEs    volume name, null padded
 1Ah    WORD    removable flag, 0000h = not removable
Note:    all words are big-endian
----------21DADA-----------------------------
INT 21 - VIRUS - "Gotcha" - INSTALLATION CHECK
    AX = DADAh
Return: AH = A5h
SeeAlso: AX=D5AAh,AH=DAFEh"VIRUS"
----------21DAFE-----------------------------
INT 21 - VIRUS - "Plovdiv 1.3" - INSTALLATION CHECK
    AX = DAFEh
Return: AX = 1234h if resident
SeeAlso: AX=DADAh,AH=DDh"VIRUS",AH=DEh"VIRUS"
----------21DB-------------------------------
INT 21 - Novell NetWare - WORKSTATION - GET NUMBER OF LOCAL DRIVES
    AH = DBh
Return: AL = number of local disks as set by LASTDRIVE in CONFIG.SYS
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=0Eh
----------21DC-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET CONNECTION NUMBER
    AH = DCh
Return: AL = logical connection number
        00h if NetWare not loaded or this machine is a non-dedicated server
    CX = station number in ASCII (CL = first digit)
Notes:    this function is supported by NetWare 4.0+, Banyan VINES, and Alloy
      NTNX
    station number only unique for those PCs connected to same semaphore
      service
----------21DC-------------------------------
INT 21 - PCMag PCMANAGE/DCOMPRES - TURN ON/OFF
    AH = DCh
    DX = state
        0000h turn on
        0001h turn off
SeeAlso: AX=FEDCh
----------21DD-------------------------------
INT 21 - Novell NetWare - WORKSTATION - SET NetWare ERROR MODE
    AH = DDh
    DL = error mode
        00h invoke INT 24 on critical I/O errors (default)
        01h return NetWare extended error code in AL
        02h return error code in AL, mapped to standard DOS error codes
Return: AL = previous error mode
Note:    this function is supported by Advanced NetWare 2.0+
SeeAlso: INT 24
----------21DD-------------------------------
INT 21 - VIRUS - "Jerusalem"-family - RELOCATE VIRUS???
    AH = DDh
    CX = number of bytes to copy
    DS:SI -> source of copy
    ES:DI -> destination of copy
Return: does not return normally; return address is caller's CS:0100h with
      AX = ???
SeeAlso: AH=E0h"VIRUS",AH=EEh"VIRUS"
----------21DE-------------------------------
INT 21 - VIRUS - "Durban" - INSTALLATION CHECK
    AH = DEh
Return: AH = DFh if resident
SeeAlso: AX=DAFEh,AX=DEDEh"VIRUS"
----------21DE-------------------------------
INT 21 - VIRUS - "April 1st EXE" - ???
    AH = DEh
    ???
Return: ???
----------21DE-------------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - SET BROADCAST MODE
    AH = DEh
    DL = broadcast mode
        00h receive server and workstation broadcasts (default)
        01h receive server broadcasts, discard user messages
        02h store server broadcasts for retrieval
        03h store all broadcasts for retrieval
Return: AL = new broadcast mode
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
----------21DE--DL04-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - GET BROADCAST MODE
    AH = DEh
    DL = 04h
Return: AL = current broadcast mode
        00h receive server and workstation broadcasts (default)
        01h receive server broadcasts, discard user message
        02h store server broadcasts for retrieval
        03h store all broadcasts for retrieval
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
----------21DE-------------------------------
INT 21 - Novell NetWare 4.0 - SHELL TIMER INTERRUPT CHECKS
    AH = DEh
    DL = function
        05h disable shell timer interrupt checks
        06h enable shell timer interrupt checks
Return: ???
----------21DEDE-----------------------------
INT 21 - VIRUS - "Brothers" - INSTALLATION CHECK
    AX = DEDEh
Return: AH = 41h if resident
SeeAlso: AH=DEh"VIRUS",AH=E0h"VIRUS"
----------21DF--DL00-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - START LPT CAPTURE
    AH = DFh
    DL = 00h
Return: AL = status
        00h successful
Desc:    this function redirects the default LPT to a capture file on the file
      server
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
    a print job is queued when the first character of output is captured
SeeAlso: AX=B800h,AX=B804h,AH=DFh/DL=01h,AH=DFh/DL=02h,AH=DFh/DL=03h
SeeAlso: AH=DFh/DL=04h,AX=F003h
----------21DF--DL01-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - END LPT CAPTURE
    AH = DFh
    DL = 01h
Return: AL = status
        00h successful
Desc:    stop redirecting the default LPT, close the capture file, and release
      the job in the print queue for printing
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
    after this call, the default LPT defaults to local printing
SeeAlso: AH=DFh/DL=00h,AH=DFh/DL=02h,AH=DFh/DL=03h,AH=DFh/DL=05h
----------21DF--DL02-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - CANCEL LPT CAPTURE
    AH = DFh
    DL = 02h
Return: AL = status
        00h successful
Desc:    this function ends the capture of the default LPT, removes the job from
      the print queue, and deletes the capture file unless it is a
      permanent capture file
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
    after this call, the default LPT defaults to local printing
SeeAlso: AH=DFh/DL=00h,AH=DFh/DL=06h
----------21DF--DL02-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - FLUSH LPT CAPTURE
    AH = DFh
    DL = 03h
Return: AL = status
        00h successful
Desc:    this function closes the current capture file for the default LPT
      and starts printing it if it is not a permanent capture file
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
    if more data is sent to the LPT port after this call, a new capture
      file will be opeend
SeeAlso: AH=DFh/DL=00h,AH=DFh/DL=01h,AH=DFh/DL=02h,AH=DFh/DL=07h
----------21DF--DL04-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - START SPECIFIC LPT CAPTURE
    AH = DFh
    DL = 04h
    DH = LPT port (00h-02h)
Return: AL = status
        00h successful
Desc:    this function redirects the specified LPT to a capture file on the file
      server
Notes:    this function is supported by Advanced NetWare 2.1+
    a print job is queued when the first character of output is captured
SeeAlso: AX=B800h,AH=DFh/DL=00h,AH=DFh/DL=05h,AH=DFh/DL=06h,AH=DFh/DL=07h
SeeAlso: AX=F003h
----------21DF--DL05-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - END SPECIFIC LPT CAPTURE
    AH = DFh
    DL = 05h
    DH = LPT port (00h-02h)
Return: AL = status
        00h successful
Desc:    stop redirecting the specified LPT, close the capture file, and release
      the job in the print queue for printing
Notes:    this function is supported by Advanced NetWare 2.1+
    after this call, the specified LPT defaults to local printing
SeeAlso: AH=DFh/DL=01h,AH=DFh/DL=04h,AH=DFh/DL=06h,AH=DFh/DL=07h
----------21DF--DL06-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - CANCEL SPECIFIC LPT CAPTURE
    AH = DFh
    DL = 06h
    DH = LPT port (00h-02h)
Return: AL = status
        00h successful
Desc:    this function ends the capture of the specified LPT, removes the job
      from the print queue, and deletes the capture file unless it is a
      permanent capture file
Notes:    this function is supported by Advanced NetWare 2.1+
    after this call, the specified LPT defaults to local printing
SeeAlso: AH=DFh/DL=02h,AH=DFh/DL=04h,AH=DFh/DL=05h,AH=DFh/DL=07h
----------21DF--DL07-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - FLUSH SPECIFIC LPT CAPTURE
    AH = DFh
    DL = 07h
    DH = LPT port (00h-02h)
Return: AL = status
        00h successful
Desc:    this function closes the current capture file for the specified LPT
      and starts printing it if it is not a permanent capture file
Notes:    this function is supported by Advanced NetWare 2.1+
    if more data is sent to the LPT port after this call, a new capture
      file will be opeend
SeeAlso: AH=DFh/DL=03h,AH=DFh/DL=04h,AH=DFh/DL=05h,AH=DFh/DL=06h
----------21E0-------------------------------
INT 21 - Digital Research DOS Plus - CALL BDOS
    AH = E0h
    CL = BDOS function number (see INT E0"CP/M")
    other registers as appropriate for function
Return: as appropriate for function
SeeAlso: AX=4459h,INT E0"CP/M"
----------21E0-------------------------------
INT 21 - OS/286, OS/386 - INITIALIZE REAL PROCEDURE
    AH = E0h
    ???
Return: ???
SeeAlso: AH=E1h"OS/286"
----------21E0-------------------------------
INT 21 - DoubleDOS - MENU CONTROL
    AH = E0h
    AL = subfunction
        01h exchange tasks
        73h resume invisible job if suspended
        74h kill other job
        75h suspend invisible job
Note:    identical to AH=F0h
SeeAlso: AH=F0h"DoubleDOS"
----------21E0-------------------------------
INT 21 - VIRUS - "Jerusalem", "Armagedon" - INSTALLATION CHECK
    AH = E0h
Return: AX = 0300h if "Jerusalem" resident
    AX = DADAh if "Armagedon" resident
SeeAlso: AH=DEh"VIRUS",AX=DEDEh"VIRUS",AX=E00Fh
----------21E0-------------------------------
INT 21 - Novell NetWare 4.0, Alloy NTNX - PRINT SPOOLING
    AH = E0h
    DS:SI -> request buffer
    ES:DI -> reply buffer
    subfunction in third byte of request buffer
        00h spool data to a capture file
        01h close and queue capture file
        02h set spool flags
        03h spool existing file
        04h get spool queue entry
        05h remove entry from spool queue
Return: AL = status
----------21E0--SF06-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET PRINTER STATUS
    AH = E0h subfn 06h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FFh no such printer
Desc:    get current state of specified printer attached to the server
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    06h (subfunction "Get Printer Status")
 03h    BYTE    printer number (00h-04h)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0004h (size of following results buffer)
 02h    BYTE    flag: 00h printer active, FFh printer halted
 03h    BYTE    flag: 00h printer online, 01h printer offline
 04h    BYTE    current form type
 05h    BYTE    target printer number (00h-04h)
        same as number in request buffer unless rerouted by server
        console
----------21E0--SF09-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SPECIFY CAPTURE FILE
    AH = E0h subfn 09h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        9Ch invalid path
Desc:    create a permanent capture file for the next print capture to be
      started
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    the caller must have read, write, and create rights for the directory
      containing the capture file

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 102h)
 02h    BYTE    09h (subfunction "Specify Capture File")
 03h    BYTE    directory handle or 00h
 04h    BYTE    length of filename
 05h  N BYTEs    name of capture file

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E00F-----------------------------
INT 21 - VIRUS - "8-tunes" - INSTALLATION CHECK
    AX = E00Fh
Return: AX = 4C31h if resident
SeeAlso: AH=E0h"VIRUS",AH=E1h"VIRUS"
----------21E1-------------------------------
INT 21 - OS/286, OS/386 - ISSUE REAL PROCEDURE CALL
    AH = E1h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AH=E0h"OS/286",AH=E2h"OS/286",AH=E3h"OS/286",AX=250Eh,INT 31/AX=0301h
----------21E1-------------------------------
INT 21 - DoubleDOS - CLEAR KEYBOARD BUFFER FOR CURRENT JOB
    AH = E1h
SeeAlso: AH=E2h"DoubleDOS",AH=E3h"DoubleDOS",AH=E8h"DoubleDOS"
SeeAlso: AH=F1h"DoubleDOS"
----------21E1-------------------------------
INT 21 - VIRUS - "Mendoza", "Fu Manchu" - INSTALLATION CHECK
    AH = E1h
Return: AX = 0300h if "Mendoza" resident
    AX = 0400h if "Fu Manchu" resident
SeeAlso: AX=E00Fh,AH=E4h"VIRUS"
----------21E1--SF00-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - SEND BROADCAST MESSAGE
    AH = E1h subfn 00h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FEh I/O error or out of dynamic workspace
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=DEh"NetWare",AH=DEh/DL=04h,AH=E1h/SF=01h,AH=E1h/SF=04h
SeeAlso: AH=E1h/SF=09h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 9Eh)
 02h    BYTE    00h (subfunction "Send Broadcast Message")
 03h    BYTE    number of connections (01h-64h)
 04h  N BYTEs    list of connections to receive broadcast message
    BYTE    length of message (01h-37h)
      N BYTEs    broadcast message (no control characters or characters > 7Eh)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 65h)
 02h    BYTE    number of connections
 03h  N BYTEs    list of per-connection results
        00h successful
        FCh message rejected due to lack of buffer space
        FDh invalid connection number
        FFh blocked (see also AH=E1h/SF=02h)
----------21E1--SF01-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - GET BROADCAST MESSAGE
    AH = E1h subfn 01h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FCh full message queue
        FEh out of dynamic workspace
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=DEh/DL=04h,AH=E1h/SF=00h,AH=E1h/SF=05h,AH=E1h/SF=09h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    01h (subfunction "Get Broadcast Message")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 38h)
 02h    BYTE    length of message (00h-37h)
        00h if no broadcast messages pending
 03h  N BYTEs    message (no control characters or characters > 7Eh)
----------21E1-------------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - ENABLE/DISABLE BROADCAST MESSAGES
    AH = E1h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer
Return: AL = error code
Note:    these functions are supported by NetWare 4.0+ but are not listed in
      _NetWare_System_Calls--DOS_; they may be obsolete
SeeAlso: AH=E1h/SF=00h,AH=E1h/SF=04h,AH=E1h/SF=09h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 9Eh)
 02h    BYTE    subfunction
        02h disable station broadcasts
        03h enable station broadcasts
 03h    ???

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer
 02h    ???
----------21E1--SF04-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - SEND PERSONAL MESSAGE
    AH = E1h subfn 04h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FEh I/O error or out of dynamic workspace
Notes:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
    message pipes use CPU time on the file server; IPX, SPX, or NetBIOS
      connections should be used for peer-to-peer communications as these
      protocols do not use file server time
SeeAlso: AH=E1h/SF=00h,AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=08h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max E5h)
 02h    BYTE    04h (subfunction "Send Personal Message")
 03h    BYTE    number of connections (01h-64h)
 04h  N BYTEs    list of connections to receive broadcast message
    BYTE    length of message (01h-7Eh)
      N BYTEs    message (no control characters or characters > 7Eh)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 65h)
 02h    BYTE    number of connections
 03h  N BYTEs    list of per-connection results
        00h successful
        FCh message rejected because queue is full (contains 6 msgs)
        FDh incomplete pipe
        FFh failed
----------21E1--SF05-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - GET PERSONAL MESSAGE
    AH = E1h subfn 05h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FEh out of dynamic workspace
Desc:    return the oldest message in the default file server's message queue
      for the calling workstation
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=E1h/SF=01h,AH=E1h/SF=04h,AH=E1h/SF=06h,AH=E1h/SF=08h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    05h (subfunction "Get Personal Message")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 80h)
 02h    BYTE    connection number of sending station
 03h    BYTE    length of message (00h-7Eh)
        00h if no personal messages pending
 04h  N BYTEs    message (no control characters or characters > 7Eh)
----------21E1--SF06-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - OPEN MESSAGE PIPE
    AH = E1h subfn 06h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FEh out of dynamic workspace
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=E1h/SF=04h,AH=E1h/SF=07h,AH=E1h/SF=08h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 66h)
 02h    BYTE    06h (subfunction "Open Message Pipe")
 03h    BYTE    number of pipes to open (01h-64h)
 04h  N BYTEs    list of connection numbers

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 65h)
 02h    BYTE    number of connections
 03h  N BYTEs    list of results
        00h successful
        FEh incomplete (target half not yet created)
        FFh failed
----------21E1--SF07-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - CLOSE MESSAGE PIPE
    AH = E1h subfn 07h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FCh full message queue
        FEh out of dynamic workspace
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=08h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 66h)
 02h    BYTE    07h (subfunction "Close Message Pipe")
 03h    BYTE    number of pipes to close (01h-64h)
 04h  N BYTEs    list of connection numbers

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 65h)
 02h    BYTE    number of connections
 03h  N BYTEs    list of results
        00h successful
        FDh failed
        FFh no such pipe
----------21E1--SF08-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - CHECK PIPE STATUS
    AH = E1h subfn 08h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FCh full message queue
        FEh out of dynamic workspace
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=07h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 66h)
 02h    BYTE    08h (subfunction "Check Pipe Status")
 03h    BYTE    number of pipes to monitor (01h-64h)
 04h  N BYTEs    list of connection numbers

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 65h)
 02h    BYTE    number of connections
 03h  N BYTEs    list of pipe statuses
        00h open
        FEh incomplete
        FFh closed
----------21E1--SF09-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - BROADCAST TO CONSOLE
    AH = E1h subfn 09h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        FCh full message queue
        FEh out of dynamic workspace
Desc:    send a one-line message to the system console on the default file
      server
Note:    this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=DEh/DL=04h,AH=E1h/SF=00h,AH=E1h/SF=01h,AH=E3h/SF=D1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 3Eh)
 02h    BYTE    09h (subfunction "Broadcast to Console")
 03h    BYTE    length of message (01h-3Ch)
 04h  N BYTEs    message (no control characters or characters > 7Eh)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E2-------------------------------
INT 21 - OS/286, OS/386 - SET REAL PROCEDURE SIGNAL HANDLER
    AH = E2h
    ???
Return: ???
SeeAlso: AH=E0h"OS/286",AH=E1h"OS/286",AH=E6h"OS/286"
----------21E2-------------------------------
INT 21 - DoubleDOS - SEND CHARACTER TO KEYBOARD BUFFER OF OTHER JOB
    AH = E2h
    AL = character
Return: AL = 00h successful
         01h buffer full (128 characters)
SeeAlso: AH=E1h"DoubleDOS",AH=E3h"DoubleDOS",AH=E8h"DoubleDOS"
SeeAlso: AH=F2h"DoubleDOS"
----------21E2--SF00-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SET DIRECTORY HANDLE
    AH = E2h subfn 00h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,98h,9Bh,9Ch) (see below)
Desc:    set the target handle to reference the directory specified by the
      source handle and the source path; both handles must refer to the
      same file server
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    the target handle is not changed if this function fails
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=12h,AH=E2h/SF=13h

Values for status:
 00h    successful
 84h    not permitted to create
 8Ah    not permitted to delete
 8Bh    not permitted to rename
 8Ch    not permitted to modify
 98h    nonexistent volume
 9Bh    invalid directory handle
 9Ch    invalid path
 9Eh    invalid filename
 9Fh    directory currently in use
 A0h    directory not empty
 FCh    no such bindery object

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 103h)
 02h    BYTE    00h (subfunction "Set Directory Handle")
 03h    BYTE    directory handle of target
 04h    BYTE    directory handle of source
 05h    BYTE    length of source directory path (01h-FFh)
 06h  N BYTEs    source directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E2--SF01-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET DIRECTORY PATH
    AH = E2h subfn 01h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,9Bh) (see AH=E2h/SF=00h)
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=02h,AH=E2h/SF=03h,AH=E2h/SF=1Ah,AH=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    01h (subfunction "Get Directory Path")
 03h    BYTE    directory handle

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) length of following data buffer
 02h    BYTE    length of directory path (01h-FFh)
 03h  N BYTEs    full directory path including volume
----------21E2--SF02-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SCAN DIRECTORY INFORMATION
    AH = E2h subfn 02h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,98h,9Bh,9Ch) (see AH=E2h/SF=00h)
Desc:    get information about the first or next subdirectory of the specified
      directory
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=03h,AH=E2h/SF=19h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 104h)
 02h    BYTE    02h (subfunction "Scan Directory Information")
 03h    BYTE    directory handle
 04h    WORD    subdirectory number (big-endian)
        0000h for first call, returned subdir number + 1 on next call
 06h    BYTE    length of directory path
 07h  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 001Ch (length of following data buffer)
 02h 16 BYTEs    subdirectory name
 12h    DWORD    date and time of creation (big-endian) (see below)
 16h    DWORD    object ID of owner (bid-endian)
 1Ah    BYTE    maximum directory rights (see AH=E2h/SF=03h)
 1Bh    BYTE    unused
 1Ch    WORD    subdirectory number (big-endian)

Bitmask of date and time:
 bits 31-25: year-1980
 bits 24-21: month
 bits 20-16: day
 bits 15-11: hour
 bits 10-5: minute
 bits 4-0: second
----------21E2--SF03-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET EFFECTIVE DIRECTORY RIGHTS
    AH = E2h subfn 03h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,98h,9Bh) (see AH=E2h/SF=00h)
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=02h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 102h)
 02h    BYTE    03h (subfunction "Get Effective Directory Rights")
 03h    BYTE    directory handle
 04h    BYTE    length of directory path (00h-FFh)
 05h  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0001h (length of following data buffer)
 02h    BYTE    effective directory rights (see below)

Bitmask of directory rights:
 bit 0: reading allowed
 bit 1: writing allowed
 bit 2: opens allowed
 bit 3: file creation allowed
 bit 4: deletion allowed
 bit 5: "parental" may create/delete subdirectories and
    grant/revoke trustee rights
 bit 6: directory search allowed
 bit 7: file attributes may be changed
----------21E2--SF04-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - MODIFY MAXIMUM RIGHTS MASK
    AH = E2h subfn 04h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,8Ch,98h,9Ch) (see AH=E2h/SF=00h)
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=03h,AH=E2h/SF=0Ah,AH=E2h/SF=0Dh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 104h)
 02h    BYTE    04h (subfunction "Modify Maximum Rights Mask")
 03h    BYTE    directory handle
 04h    BYTE    rights to grant (see AH=E2h/SF=03h)
 05h    BYTE    rights to revoke (see AH=E2h/SF=03h)
 06h    BYTE    length of directory path (00h-FFh)
 07h  N BYTEs    directory path
Note:    the rights specified at offset 05h are revoked first, and then the
      rights specified at offset 04h are added to the resulting rights
      mask

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E2--SF05-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME NUMBER
    AH = E2h subfn 05h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,98h) (see AH=E2h/SF=00h)
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=DAh,AH=E2h/SF=02h,AH=E2h/SF=05h,AH=E2h/SF=15h,AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 12h)
 02h    BYTE    05h (subfunction "Get Volume Number")
 03h    BYTE    length of volume name (01h-10h)
 04h  N BYTEs    volume name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0001h (length of following results buffer)
 02h    BYTE    volume number
----------21E2--SF06-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME NAME
    AH = E2h subfn 06h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,98h) (see AH=E2h/SF=00h)
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=DAh,AH=E2h/SF=02h,AH=E2h/SF=05h,AH=E2h/SF=15h,AH=E2h/SF=1Ah
SeeAlso: AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    06h (subfunction "Get Volume Name")
 03h    BYTE    volume number

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0011h (length of following results buffer)
 02h    BYTE    length of volume name
 03h 16 BYTEs    NUL-padded volume name
----------21E2--SF0A-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - CREATE DIRECTORY
    AH = E2h subfn 0Ah
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,84h,98h,FCh) (see AH=E2h/SF=00h)
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=39h,AH=E2h/SF=0Bh,AH=E2h/SF=0Fh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 103h)
 02h    BYTE    0Ah (subfunction "Create Directory")
 03h    BYTE    directory handle
 04h    BYTE    maximum directory rights (see AH=E2h/SF=01h)
 05h    BYTE    length of directory path (00h-FFh)
 06h  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E2--SF0B-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - DELETE DIRECTORY
    AH = E2h subfn 0Bh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,8Ah,98h,9Bh,9Ch,9Fh,A0h) (see AH=E2h/SF=00h)
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=3Ah,AH=E2h/SF=0Ah,AH=E2h/SF=0Fh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 103h)
 02h    BYTE    0Bh (subfunction "Delete Directory")
 03h    BYTE    directory handle
 04h    BYTE    unused
 05h    BYTE    length of directory path (00h-FFh)
 06h  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E2--SF0C-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SCAN DIRECTORY FOR TRUSTEES
    AH = E2h subfn 0Ch
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        9Ch no more trustees
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=0Dh,AH=E2h/SF=0Eh,AH=E3h/SF=47h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 103h)
 02h    BYTE    0Ch (subfunction "Scan Directory For Trustees")
 03h    BYTE    directory handle
 04h    BYTE    sequence number
        00h on first call, increment for each subsequent call
 05h    BYTE    length of directory path (00h-FFh)
 06h  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0031h (length of following results buffer)
 02h 16 BYTEs    directory name
 12h  4 BYTEs    date and time of creation
 16h    DWORD    object ID of owner (big-endian)
 1Ah  5 DWORDs    object IDs of Trustees 0 through 4 (big-endian)
        00000000h = end of group
 2Eh  5 BYTEs    directory rights for Trustees 0 through 4 (see AH=E2h/SF=03h)
----------21E2--SF0D-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - ADD TRUSTEE TO DIRECTORY
    AH = E2h subfn 0Dh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,8Ch,FCh) (see AH=E2h/SF=00h)
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=0Ch,AH=E2h/SF=0Eh,AH=E3h/SF=47h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 107h)
 02h    BYTE    0Dh (subfunction "Add Trustee To Directory")
 03h    BYTE    directory handle
 04h    DWORD    object ID of trustee (big-endian)
 08h    BYTE    trustee directory rights (see AH=E2h/SF=01h)
 09h    BYTE    length of directory path (00h-FFh)
 0Ah  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E2--SF0E-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - DELETE TRUSTEE FROM DIRECTORY
    AH = E2h subfn 0Eh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,98h,9Bh,9Ch) (see AH=E2h/SF=00h)
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=0Ch,AH=E2h/SF=0Dh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 107h)
 02h    BYTE    0Eh (subfunction "Delete Trustee From Directory")
 03h    BYTE    directory handle
 04h    DWORD    object ID of trustee (big-endian)
 08h    BYTE    unused
 09h    BYTE    length of directory path (00h-FFh)
 0Ah  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E2--SF0F-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - RENAME DIRECTORY
    AH = E2h subfn 0Fh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,8Bh,9Bh,9Ch,9Eh) (see AH=E2h/SF=00h)
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    directories SYS:LOGIN, SYS:MAIL, and SYS:PUBLIC must not be renamed
SeeAlso: AH=56h,AH=E2h/SF=0Ah,AH=E2h/SF=0Bh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 111h)
 02h    BYTE    0Fh (subfunction "Rename Directory")
 03h    BYTE    directory handle
 04h    BYTE    length of directory path (00h-FFh)
 05h  N BYTEs    directory path
    BYTE    length of new directory name (01h-0Eh)
      N BYTEs    new directory name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E2--SF10-------------------------
INT 21 - Novell NetWare - FILE SERVICES - PURGE ERASED FILES
    AH = E2h subfn 10h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    purges files marked for deletion on the file server by the calling
      workstation
SeeAlso: AH=13h,AH=41h,AH=E2h/SF=11h,AH=E3h/SF=CEh,AX=F244h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    10h (subfunction "Purge Erased Files")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E2--SF11-------------------------
INT 21 - Novell NetWare - FILE SERVICES - RESTORE ERASED FILE
    AH = E2h subfn 11h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        98h nonexistent volume
        FFh no more erased files
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    restores one file marked for deletion which has not yet been purged
SeeAlso: AH=13h,AH=41h,AH=E2h/SF=10h,AH=E3h/SF=CEh,AX=F244h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 13h)
 02h    BYTE    11h (subfunction "Restore Erased File")
 03h    BYTE    directory handle or 00h
 04h    BYTE    length of volume name
 05h  N BYTEs    volume name (including colon)
Note:    if both a directory handle and a volume name are specified, the volume
      name overrides the handle

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 001Eh (size of following results buffer)
 02h 15 BYTEs    ASCIZ name of erased file
 11h 15 BYTEs    ASCIZ name under which file was restored
----------21E2--SF12-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - ALLOC PERMANENT DIRECTORY HANDLE
    AH = E2h subfn 12h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,98h,9Ch) (see AH=E2h/SF=00h)
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=00h,AH=E2h/SF=13h,AH=E2h/SF=14h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 103h)
 02h    BYTE    12h (subfunction "Alloc Permanent Directory Handle")
 03h    BYTE    directory handle
 04h    BYTE    drive ('A'-'Z')
 05h    BYTE    length of directory path
 06h  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0002h (size of following results buffer)
 02h    BYTE    new directory handle
 03h    BYTE    effective directory rights (see AH=E2h/SF=01h)
----------21E2--SF13-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - ALLOC TEMPORARY DIRECTORY HANDLE
    AH = E2h subfn 13h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see AH=E2h/SF=12h)
Return: AL = status (00h,98h,9Ch) (see AH=E2h/SF=00h)
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    this call is the same as AH=E2h/SF=12h except that the directory handle
      will be automatically deallocated when the calling application
      executes an End of Job call (AH=D6h) or terminates
SeeAlso: AH=D6h,AH=E2h/SF=00h,AH=E2h/SF=12h,AH=E2h/SF=14h,AH=E2h/SF=16h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 103h)
 02h    BYTE    13h (subfunction "Alloc Temporary Directory Handle")
 03h    BYTE    directory handle
 04h    BYTE    drive ('A'-'Z')
 05h    BYTE    length of directory path
 06h  N BYTEs    directory path
----------21E2--SF14-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - DEALLOCATE DIRECTORY HANDLE
    AH = E2h subfn 14h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,9Bh) (see AH=E2h/SF=00h)
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=12h,AH=E2h/SF=13h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    14h (subfunction "Deallocate Directory Handle")
 03h    BYTE    directory handle

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no returned data)
----------21E2--SF15-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME INFO WITH HANDLE
    AH = E2h subfn 15h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=DAh,AH=E2h/SF=02h,AH=E2h/SF=06h,AH=E2h/SF=19h,AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    15h (subfunction "Get Volume Info With Handle")
 03h    BYTE    directory handle

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 001Ch (length of following results buffer)
 02h    WORD    sectors per block (big-endian)
 04h    WORD    total blocks on volume (big-endian)
 06h    WORD    blocks available on volume (big-endian)
 08h    WORD    total directory slots  (big-endian)
 0Ah    WORD    directory slots available (big-endian)
 0Ch 16 BYTEs    NUL-padded volume name
 1Ch    WORD    flag: volume removable if nonzero (big-endian)
----------21E2--SF16-------------------------
INT 21 u - Novell NetWare - DIRECTORY SERVICES - ALLOC SPECIAL TEMP DIR HANDLE
    AH = E2h subfn 16h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer
Return: AL = status
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX,
      but is not described in _NetWare_System_Calls--DOS_
SeeAlso: AH=E2h/SF=13h,AH=E2h/SF=14h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data
 02h    BYTE    16h (subfunction "Allocate Special Temporary Directory Handle")
    ???
----------21E2--SF17-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SAVE DIRECTORY HANDLE
    AH = E2h subfn 17h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        else network error code
Note:    this function is supported by Advanced NetWare 2.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=12h,AH=E2h/SF=17h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    18h (subfunction "Restore Directory Handle")
 03h    BYTE    directory handle

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0010h (length of following results buffer)
 02h 16    BYTEs    save buffer
----------21E2--SF18-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - RESTORE DIRECTORY HANDLE
    AH = E2h subfn 18h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        else network error code
Desc:    restore a previously saved directory handle to reproduce an executing
      environment, possibly on a different execution site
Note:    this function is supported by Advanced NetWare 2.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=12h,AH=E2h/SF=17h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0011h (length of following data)
 02h    BYTE    18h (subfunction "Restore Directory Handle")
 03h 16 BYTEs    save buffer

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0002h (length of following results buffer)
 02h    BYTE    new directory handle
 03h    BYTE    effective rights (see AH=E2h/SF=03h)
----------21E2--SF19-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SET DIRECTORY INFORMATION
    AH = E2h subfn 19h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,9Bh,9Ch) (see AH=E2h/SF=00h)
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=02h,AH=E2h/SF=0Fh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 10Bh)
 02h    BYTE    19h (subfunction "Set Directory Information")
 03h    BYTE    directory handle
 04h    DWORD    date and time of creation (big-endian)
 08h    DWORD    object ID of owner (big-endian)
 0Ch    BYTE    maximum directory rightes (see AH=E2h/SF=03h)
 0Dh    BYTE    length of directory path
 0Eh  N BYTEs    directory path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E2--SF1A-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PATH FROM DIRECTORY ENTRY
    AH = E2h subfn 1Ah
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=06h,AH=E3h/SF=D7h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0004h (length of following data)
 02h    BYTE    1Ah (subfunction "Get Path From Directory Entry")
 03h    BYTE    volume number (00h-1Fh)
 04h    WORD    directory entry number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 200h)
 02h 256 BYTEs    path
----------21E3-------------------------------
INT 21 - OS/286, OS/386 - ISSUE REAL INTERRUPT
    AH = E3h
    AL = interrupt number
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AH=E1h"OS/286",INT 31/AX=0300h
----------21E3-------------------------------
INT 21 - DoubleDOS - ADD CHARACTER TO KEYBOARD BUFFER OF CURRENT JOB
    AH = E3h
    AL = character
Return: AL = 00h successful
         01h buffer full (128 characters)
SeeAlso: AH=E1h"DoubleDOS",AH=E2h"DoubleDOS",AH=E8h"DoubleDOS"
SeeAlso: AH=F3h"DoubleDOS"
----------21E3-------------------------------
INT 21 - Novell NetWare - CONNECTION CONTROL
    AH = E3h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        else error code
Note:    supported by NetWare 4.0+, Advanced NetWare 1.0+, and Alloy NTNX
SeeAlso: AH=E3h/SF=0Ah,AH=E3h/SF=32h,AH=E3h/SF=64h,AH=E3h/SF=C8h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data
 02h    BYTE    subfunction number
        00h login
        01h change password
        02h map user to station set
        03h map object to number
        04h map number to object
        05h get station's logged information
        06h get station's root mask (obsolete)
        07h map group name to number
        08h map number to group name
        09h get memberset M of group G
    var    depends on subfunction
Notes:    the above subfunctions are not described in _NetWare_System_Calls--DOS_
    see separate entries below for other subfunctions

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) length of following buffer space for results
    var    depends on subfunction

Format of object property:
Offset    Size    Description
 00h 1-16 BYTEs    property name
  N    BYTE    flags
        bit 0: property is dynamic
        bit 1: property is a set rather than an item
 N+1    BYTE    security levels (see below)
    ???

Names of well-known properties:
 ACCOUNT_BALANCE
 ACCOUNT_SERVERS
 GROUP_MEMBERS
 GROUPS_I'M_IN
 IDENTIFICATION        user's name
 LOGIN_CONTROL
 NET_ADDRESS
 OPERATORS
 PASSWORD
 SECURITY_EQUALS

Values for security levels:
 00h    "anyone" everyone may access
 01h    "logged" only logged-in clients may access
 02h    "object" only clients logged-in with object's name, type, and password
 03h    "supervisor" only clients logged-in with supervisor privileges
 04h    "NetWare" only NetWare may access
Note:    the above values are stored in a nybble; the high half-byte is write
      access and the low half-byte is read access

Values for object type:
 0000h    unknown
 0001h    user
 0002h    user group
 0003h    print queue
 0004h    file server
 0005h    job server
 0006h    gateway
 0007h    print server
 0008h    archive queue
 0009h    archive server
 000Ah    job queue
 000Bh    administration
 0026h    remote bridge server
 0047h    advertising print server
 0048h-8000h reserved
 FFFFh    wild (used only for finding objects)
----------21E3--SF0A-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - ENTER LOGIN AREA
    AH = E3h subfn 0Ah
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Desc:    change the login directory for the calling workstation
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=D7h,AH=E3h/SF=14h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 102h)
 02h    BYTE    0Ah (subfunction "Enter Login Area")
 03h    BYTE    number of local drives
 04h    BYTE    length of subdirectory name (00h-FFh)
 05h  N BYTEs    name of subdirectory under SYS:LOGIN where to find the login
        utility

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF0D-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - LOG NETWORK MESSAGE
    AH = E3h subfn 0Dh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Desc:    append a line to the default file server's NET$LOG.MSG file
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E1h/SF=09h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 52h)
 02h    BYTE    0Dh (subfunction "Log Network Message")
 03h    BYTE    length of message (01h-50h)
 04h  N BYTEs    message (no control characters or characters > 7Eh)
----------21E3--SF0E-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DISK UTILIZATION
    AH = E3h subfn 0Eh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        98h nonexistent volume
        F2h not permitted to read object
Notes:    this function is supported by Advanced NetWare 2.1+
    the caller must have bindery object read privileges
SeeAlso: AH=E3h/SF=11h,AH=E3h/SF=D6h,AH=E3h/SF=D9h,AH=E3h/SF=E6h,AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    0Eh (subfunction "Get Disk Utilization")
 03h    BYTE    volume number (00h-1Fh)
 04h    DWORD    object ID (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 000Bh (size of following results buffer)
 02h    BYTE    volume number (00h-1Fh)
 03h    DWORD    object ID (big-endian)
 07h    WORD    directories used by object (big-endian)
 09h    WORD    files created by object (big-endian)
 0Bh    WORD    disk blocks used by object-created files (big-endian)
----------21E3--SF0F-------------------------
INT 21 - Novell NetWare - FILE SERVICES - SCAN FILE INFORMATION
    AH = E3h subfn 0Fh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        89h not permitted to search directory
        FFh no more matching files
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=B6h,AH=E3h/SF=10h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 105h)
 02h    BYTE    0Fh (subfunction "Scan File Information")
 03h    WORD    sequence number (big-endian)
        FFFFh on first call
 05h    BYTE    directory handle or 00h
 06h    BYTE    search attributes (see AX=4301h)
 07h    BYTE    length of filespec
 08h  N BYTEs    ASCIZ uppercase filespec

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 005Eh (size of following results buffer)
 02h    WORD    next sequence number (place in request buffer for next call)
 04h 15 BYTEs    ASCIZ filename
 13h    BYTE    file attributes (see AX=4301h for format)
 14h    BYTE    extended file attributes (see AH=B6h for format)
 15h    DWORD    file size in bytes (big-endian)
 19h    WORD    file's creation date (big-endian) (see AX=5700h for format)
 1Bh    WORD    date of last access (big-endian) (see AX=5700h for format)
 1Dh    DWORD    date and time of last update (big-endian) (see AH=E2h/SF=02h)
 21h    DWORD    object ID of owner (big-endian)
 25h    DWORD    date and time last archived (big-endian) (see AH=E2h/SF=02h)
 29h 55 BYTEs    reserved
----------21E3--SF10-------------------------
INT 21 - Novell NetWare - FILE SERVICES - SET FILE INFORMATION
    AH = E3h subfn 10h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
    the caller must have modify privileges on the directory containing the
      file
SeeAlso: AH=B6h,AH=E3h/SF=0Fh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 151h)
 02h    BYTE    10h (subfunction "Set File Information")
 03h    BYTE    file attributes (see AX=4301h for format)
 04h    BYTE    extended file attributes (see AH=B6h for format)
 05h  4 BYTEs    reserved
 09h    WORD    file's creation date (big-endian) (see AX=5700h for format)
 0Bh    WORD    date of last access (big-endian) (see AX=5700h for format)
 0Dh    DWORD    date and time of last update (big-endian) (see AH=E2h/SF=02h)
 11h    DWORD    object ID of owner (big-endian)
 15h    DWORD    date and time last archived (big-endian) (see AH=E2h/SF=02h)
 19h 56 BYTEs    reserved
 51h    BYTE    directory handle or 00h
 52h    BYTE    search attributes (see AX=4301h for format)
 53h    BYTE    length of filename
 54h  N BYTEs    filename
Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF11-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER INFORMATION
    AH = E3h subfn 11h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=0Eh,AH=E3h/SF=CDh,AH=E3h/SF=D3h,AH=E3h/SF=E7h,AH=E7h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    11h (subfunction "Get File Server Information")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0080h (size of following results buffer)
 02h 48 BYTEs    server's name
 32h    BYTE    NetWare version
 33h    BYTE    NetWare subversion (0-99)
 34h    WORD    number of connections supported (big-endian)
 36h    WORD    number of connections in use (big-endian)
 38h    WORD    maximum connected volumes (big-endian)
---Advanced NetWare 2.1+ ---
 3Ah    BYTE    operating system revision number
 3Bh    BYTE    fault tolerance (SFT) level
 3Ch    BYTE    TTS level
 3Dh    WORD    maximum simultaneously-used connections (big-endian)
 3Fh    BYTE    accounting version
 40h    BYTE    VAP version
 41h    BYTE    queueing version
 42h    BYTE    print server version
 43h    BYTE    virtual console version
 44h    BYTE    security restrictions level
 45h    BYTE    internetwork bridge version
 46h 60 BYTEs    reserved
----------21E3--SF13-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET INTERNET ADDRESS
    AH = E3h subfn 13h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=DCh"NetWare",AH=E3h/SF=16h,AH=EEh"NetWare"

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    13h (subfunction "Get Internet Address")
 03h    BYTE    logical connection number (01h-64h)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 000Ch (length of following results buffer)
 02h  4 BYTEs    network number
 06h  6 BYTEs    physical node address
 0Ch  2 BYTEs    socket number
----------21E3--SF14-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - LOGIN TO FILE SERVER
    AH = E3h subfn 14h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Desc:    this function retrieves a list indicating the connection numbers under
      which a bindery object is logged into the default file server
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=D7h"NetWare",AH=F1h"NetWare"

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max B3h)
 02h    BYTE    14h (subfunction "Login To File Server")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object's name
    BYTE    length of password
      N BYTEs    password

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF15-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET OBJECT CONNECTION NUMBERS
    AH = E3h subfn 15h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Desc:    this function retrieves a list indicating the connection numbers under
      which a bindery object is logged into the default file server
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=DCh"NetWare",AH=E3h/SF=16h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 33h)
 02h    BYTE    15h (subfunction "Get Object Connection Numbers")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) length of following results buffer (max 65h)
 02h    BYTE    number of connections
 03h  N BYTEs    connection list
----------21E3--SF16-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET CONNECTION INFORMATION
    AH = E3h subfn 16h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=D7h,AH=DCh"NetWare",AH=E3h/SF=14h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    16h (subfunction "Get Connection Information")
 03h    BYTE    logical connection number (01h-64h)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 003Dh (length of following results buffer)
 02h    DWORD    object ID for object logged in on the connection (big-endian)
        00000000h if no object logged in
 06h    WORD    type of object (big-endian)
 08h 48 BYTEs    name of object
 38h  7 BYTEs    login time (see below)

Format of login time:
Offset    Size    Description
 00h    BYTE    year (80-99 = 1980-1999, 00-79 = 2000-2079)
 01h    BYTE    month (1-12)
 02h    BYTE    day (1-31)
 03h    BYTE    hour (0-23)
 04h    BYTE    minute (0-59)
 05h    BYTE    second (0-59)
 06h    BYTE    day of week (0 = Sunday)
----------21E3--SF32-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CREATE BINDERY OBJECT
    AH = E3h subfn 32h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EEh    object already exists
        EFh invalid name
        F1h invalid bindery security level
        F5h not permitted to create objects
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=33h,AH=E3h/SF=34h,AH=E3h/SF=38h,AH=E3h/SF=39h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 35h)
 02h    BYTE    32h (subfunction "Create Bindery Object")
 03h    BYTE    object flag
        00h static
        01h dynamic
 04h    BYTE    object security levels
 05h    WORD    type of object (big-endian)
 07h    BYTE    length of object's name
 08h  N BYTEs    object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    0000h (no data returned)
----------21E3--SF33-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - DELETE BINDERY OBJECT
    AH = E3h subfn 33h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EFh invalid name
        F0h wildcard not allowed
        F4h not permitted to delete objects
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=34h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 33h)
 02h    BYTE    33h (subfunction "Delete Bindery Object")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF34-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - RENAME BINDERY OBJECT
    AH = E3h subfn 34h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EFh invalid name
        F0h wildcard not allowed
        F3h not permitted to rename object
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=33h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 63h)
 02h    BYTE    34h (subfunction "Rename Bindery Object")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object's name
    BYTE    length of new name (01h-2Fh)
      N BYTEs    new name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF35-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - GET BINDERY OBJECT ID
    AH = E3h subfn 35h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Notes:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
    the requesting workstation must be logged into the file server with
      read access to the bindery object
SeeAlso: AH=E3h/SF=36h,AH=E3h/SF=44h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 33h)
 02h    BYTE    35h (subfunction "Get Bindery Object ID")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name
 06h  N BYTEs    object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0036h (length of following buffer space)
 02h    DWORD    object ID (big-endian)
 06h    WORD    type of object (big-endian)
 08h 48 BYTEs    object name
----------21E3--SF36-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - GET BINDERY OBJECT NAME
    AH = E3h subfn 36h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EFh invalid name
        F0h    wildcard not allowed
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Notes:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
    the requesting workstation must be logged into the file server with
      read access to the bindery object
SeeAlso: AH=E3h/SF=35h,AH=E3h/SF=44h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    36h (subfunction "Get Bindery Object Name")
 03h    DWORD    object ID (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0036h (length of following buffer space)
 02h    DWORD    object ID (big-endian)
 06h    WORD    type of object (big-endian)
 08h 48 BYTEs    object name
----------21E3--SF37-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - SCAN BINDERY OBJECT
    AH = E3h subfn 37h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EFh invalid name
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Notes:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
    the requesting workstation must be logged into the file server with
      read access to the bindery object
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=33h,AH=E3h/SF=38h,AH=E3h/SF=3Ch

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 37h)
 02h    BYTE    37h (subfunction "Scan Bindery Object")
 03h    DWORD    last object ID (big-endian)
 07h    WORD    type of object (big-endian)
 09h    BYTE    length of object's name
 0Ah  N BYTEs    object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0039h (length of following buffer space)
 02h    DWORD    object ID (big-endian)
        FFFFFFFFh for first call
 06h    WORD    type of object (big-endian)
 08h    BYTE    length of object's name (01h-2Fh)
 09h  N BYTEs    object name
    BYTE    object flag (00h static, 01h dynamic)
    BYTE    object's security levels
    BYTE    object properties flag (00h no, FFh yes)
----------21E3--SF38-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CHANGE BINDERY OBJECT SECURITY
    AH = E3h subfn 38h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        F0h    wildcard not allowed
        F1h invalid bindery security level
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=3Bh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 34h)
 02h    BYTE    38h (subfunction "Change Bindery Object Security")
 03h    BYTE    new security levels
 04h    WORD    type of object (big-endian)
 06h    BYTE    length of object's name (01h-2Fh)
 07h  N BYTEs    object name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF39-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CREATE PROPERTY
    AH = E3h subfn 39h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EDh    property already exists
        EFh invalid name
        F0h wildcard not allowed
        F1h invalid bindery security level
        F7h not permitted to create properties
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=3Bh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 45h)
 02h    BYTE    39h (subfunction "Create Property")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object's name
    BYTE    property flags
    BYTE    property security levels
    BYTE    length of property's name (01h-0Fh)
      N BYTEs    property's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF3A-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - DELETE PROPERTY
    AH = E3h subfn 3Ah
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        F0h wildcard not allowed
        F1h invalid bindery security level
        F6h not permitted to delete properties
        FBh no such property
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=39h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 43h)
 02h    BYTE    3Ah (subfunction "Delete Property")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object's name
    BYTE    length of property's name (01h-0Fh)
      N BYTEs    property's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF3B-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CHANGE PROPERTY SECURITY
    AH = E3h subfn 3Bh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        F0h    wildcard not allowed
        F1h invalid bindery security level
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=38h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 44h)
 02h    BYTE    3Bh (subfunction "Change Property Security")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object name
    BYTE    new property security levels
    BYTE    length of property's name
      N BYTEs    property name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF3C-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - SCAN PROPERTY
    AH = E3h subfn 3Ch
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        F0h    wildcard not allowed
        F1h invalid bindery security level
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=37h,AH=E3h/SF=3Bh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 47h)
 02h    BYTE    3Ch (subfunction "Scan Property")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object name
    DWORD    sequence number (big-endian)
        FFFFFFFFh for first call
    BYTE    length of property's name (01h-0Fh)
      N BYTEs    property's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0018h (length of following results buffer)
 02h 16 BYTEs    property name
 12h    BYTE    property flags
 13h    BYTE    property security levels
 14h    DWORD    sequence number (big-endian)
 18h    BYTE    property value flag (00h no, FFh yes)
 19h    BYTE    more properties (00h no, FFh yes)
----------21E3--SF3D-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - READ PROPERTY VALUE
    AH = E3h subfn 3Dh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        ECh no such segment
        F0h    wildcard not allowed
        F1h invalid bindery security level
        F9h not permitted to read property
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure
Desc:    retrieve one 128-byte segment of the specified property's value
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=39h,AH=E3h/SF=3Ch,AH=E3h/SF=3Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 44h)
 02h    BYTE    3Dh (subfunction "Read Property Value")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object name
    BYTE    segment number (01h on first call, increment until done)
    BYTE    length of property's name (01h-0Fh)
      N BYTEs    property name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0082h (length of following results buffer)
 02h 128 BYTEs    property's value
 82h    BYTE    more segments (00h no, FFh yes)
 83h    BYTE    property's flags
----------21E3--SF3E-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - WRITE PROPERTY VALUE
    AH = E3h subfn 3Eh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        E8h not item property
        ECh no such segment
        F0h    wildcard not allowed
        F1h invalid bindery security level
        F8h not permitted to write property
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=39h,AH=E3h/SF=3Ch,AH=E3h/SF=3Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max C5h)
 02h    BYTE    3Eh (subfunction "Write Property Value")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object name
    BYTE    segment number (01h on first call, increment until done)
    BYTE    erase remaining segments (00h no, FFh yes)
    BYTE    length of property's name (01h-0Fh)
      N BYTEs    property name
    128 BYTEs    property value segment

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF3F-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - VERIFY BINDERY OBJECT PASSWORD
    AH = E3h subfn 3Fh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        F0h    wildcard not allowed
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure: no such object, bad password
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=40h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 133h)
 02h    BYTE    3Fh (subfunction "Verify Bindery Object Password")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object name
    BYTE    length of password (00h-7Fh)
      N BYTEs    password

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF40-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CHANGE BINDERY OBJECT PASSWORD
    AH = E3h subfn 40h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        F0h    wildcard not allowed
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure: no such object, no password for object, or
            invalid old password
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=3Fh,AH=E3h/SF=41h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 133h)
 02h    BYTE    40h (subfunction "Change Bindery Object Password")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name (01h-2Fh)
 06h  N BYTEs    object name
    BYTE    length of old password (00h-7Fh)
      N BYTEs    old password
    BYTE    length of new password (00h-7Fh)
      N BYTEs    new password

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF41-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - ADD BINDERY OBJECT TO SET
    AH = E3h subfn 41h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        E9h    member already exists
        EBh    not a group property
        F0h    wildcard not allowed
        F8h    can't write property
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure
Desc:    add the specified object to a set property
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=40h,AH=E3h/SF=42h,AH=E3h/SF=43h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 75h)
 02h    BYTE    41h (subfunction "Add Bindery Object to Set")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name
 06h  N BYTEs    object name
    BYTE    length of property name (01h-0Fh)
      N BYTEs    property name
    WORD    type of member object (big-endian)
    BYTE    length of member object's name
      N BYTEs    member object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF42-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - DELETE BINDERY OBJECT FROM SET
    AH = E3h subfn 42h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EAh    member does not exist
        EBh    not a group property
        F0h    wildcard not allowed
        F8h    can't write property
        FBh    no such property
        FCh    no such object
        FEh    server bindery locked
        FFh    bindery failure
Desc:    delete the specified object from a set property
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=40h,AH=E3h/SF=42h,AH=E3h/SF=43h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 75h)
 02h    BYTE    42h (subfunction "Delete Bindery Object from Set")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name
 06h  N BYTEs    object name
    BYTE    length of property name (01h-0Fh)
      N BYTEs    property name
    WORD    type of member object (big-endian)
    BYTE    length of member object's name
      N BYTEs    member object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF43-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - IS BINDERY OBJECT IN SET
    AH = E3h subfn 43h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        EAh member does not exist
        EBh not a group property
        F0h    wildcard not allowed
        F9h not permitted to read property
        FBh no such property
        FCh no such object
        FEh    server bindery locked
        FFh    bindery failure
Notes:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
    the caller must have read access to the property
SeeAlso: AH=E3h/SF=41h,AH=E3h/SF=42h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 75h)
 02h    BYTE    43h (subfunction "Is Bindery Object In Set")
 03h    WORD    type of object (big-endian)
 05h    BYTE    length of object's name
 06h  N BYTEs    object's name
    BYTE    length of property's name
      N BYTEs    property's name
    WORD    type of member object (big-endian)
    BYTE    length of member object's name
      N BYTEs    member object's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF44-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CLOSE BINDERY
    AH = E3h subfn 44h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=45h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    44h (subfunction "Close Bindery")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF45-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - OPEN BINDERY
    AH = E3h subfn 45h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Notes:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
    the bindery may only be opened by the supervisor or an object with
      equivalent privileges
SeeAlso: AH=E3h/SF=44h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    45h (subfunction "Open Bindery")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no data returned)
----------21E3--SF46-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - GET BINDERY ACCESS LEVEL
    AH = E3h subfn 46h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    46h (subfunction "Get Bindery Access Level")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following buffer)
 02h    BYTE    security levels
 03h    DWORD    object ID (big-endian)
----------21E3--SF47-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SCAN BINDERY OBJ TRUSTEE PATHS
    AH = E3h subfn 47h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        96h server out of memory
        F0h wildcard not allowed
        F1h invalid bindery security level
        FCh no such object
        FEh server bindery locked
        FFh bindery failure
Desc:    iterate through the directories to which an object is a trustee
Note:    this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=0Ch,AH=E2h/SF=0Dh,AH=E2h/SF=0Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0008h (length of following data)
 02h    BYTE    47h (subfunction "Scan Bindery Object Trustee Paths")
 03h    BYTE    volume number (00h-1Fh)
 04h    WORD    last sequence number (big-endian)
        00h on first call
 06h    DWORD    object ID (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) length of following results buffer (max 107h)
 02h    WORD    next sequence number (big-endian)
 04h    DWORD    object ID (big-endian)
 08h    BYTE    trustee directory rights (see AH=E2h/SF=03h)
 09h    BYTE    length fo trustee path
 0Ah  N BYTEs    trustee path
----------21E3--SF64-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CREATE QUEUE
    AH = E3h subfn 64h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,99h,9Bh,9Ch,EDh-F1h,F5h,F7h,FCh,FEh,FFh)
        (see below)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on a workstation with supervisor privileges
SeeAlso: AH=E3h/SF=65h,AH=E3h/SF=66h,AH=E3h/SF=68h,AH=E3h/SF=6Bh

Values for status:
 00h    successful
 96h    server out of memory
 99h    directory full
 9Bh    invalid directory handle
 9Ch    invalid path
 D0h    queue error
 D1h    no such queue
 D2h    no server for queue
 D3h    no queue rights
 D4h    queue full
 D5h    no queue job
 D6h    no job rights
 D7h    queue servicing error
 D9h    station is not a server
 DAh    queue halted
 DBh    too many queue servers
 EDh    property already exists
 EEh    object already exists
 EFh    invalid name
 F0h    wildcard not allowed
 F1h    invalid bindery security level
 F5h    not permitted to create object
 F7h    not permitted to create property
 FCh    no such object
 FEh    server bindery locked
 FFh    bindery failure

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max ABh)
 02h    BYTE    64h (subfunction "Create Queue")
 03h    WORD    queue type (big-endian)
 05h    BYTE    length of queue's name (01h-2Fh)
 06h  N BYTEs    queue's name
    BYTE    directory handle or 00h
    BYTE    length of path name (01h-76h)
      N BYTEs    path name of directory in which to create queue subdirectory

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0004h (size of following results buffer)
 02h    DWORD    object ID of queue (big-endian)
----------21E3--SF65-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - DESTROY QUEUE
    AH = E3h subfn 65h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D0h,D1h,FFh) (see also AH=E3h/SF=64h)
        FFh hardware failure
Desc:    abort all active jobs, detach all job servers, remove all job entries,
      delete all job files, remove the queue object and its properties
      from the bindery, and delete the queue's subdirectory
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must have SUPERVISOR privileges
SeeAlso: AH=E3h/SF=64h,AH=E3h/SF=66h,AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=70h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    65h (subfunction "Destroy Queue")
 03h    DWORD    object ID of queue (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF66-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - READ QUEUE CURRENT STATUS
    AH = E3h subfn 66h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D1h-D3h,F1h,FCh,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on a workstation which is security-equivalent to a
      member of the queue's Q_USERS or Q_OPERATORS properties
SeeAlso: AH=E3h/SF=64h,AH=E3h/SF=67h,AH=E3h/SF=6Fh,AH=E3h/SF=76h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    66h (subfunction "Read Queue Current Status")
 03h    DWORD    object ID of queue (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0085h (size of following results)
 02h    DWORD    object ID of queue (big-endian)
 06h    BYTE    status of queue
        bit 0: operator disabled addition of new jobs
        bit 1: operator refuses additional job servers attaching
        bit 2: operator disabled job servicing
 07h    BYTE    number of jobs in queue (00h-FAh)
 08h    BYTE    number of servers attached to queue (00h-19h)
 09h 25 DWORDs    list of object IDs of attached servers
 6Dh 25 BYTEs    list of attached servers' stations
 86h    BYTE    (call) maximum number of servers to return
----------21E3--SF67-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - SET QUEUE CURRENT STATUS
    AH = E3h subfn 67h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must have operator privileges
SeeAlso: AH=E3h/SF=64h,AH=E3h/SF=66h,AH=E3h/SF=6Fh,AH=E3h/SF=76h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0006h (length of following data)
 02h    BYTE    67h (subfunction "Set Queue Current Status")
 03h    DWORD    object ID of queue (big-endian)
 07h    BYTE    queue status
        bit 0: operator disabled addition of new jobs
        bit 1: operator refuses additional job servers attaching
        bit 2: operator disabled job servicing

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF68-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CREATE QUEUE JOB AND FILE
    AH = E3h subfn 68h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,99h,9Ch,D0h-D4h,DAh,EDh,EFh-F1h,F7h,FCh,FEh,FFh)
        (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on a workstation which is security-equivalent to a
      member of the queue's Q_USER property
SeeAlso: AH=E3h/SF=69h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0107h (length of following data)
 02h    BYTE    68h (subfunction "Close File and Start Queue Job")
 03h    DWORD    object ID of queue (big-endian)
 07h    BYTE    client station
 08h    BYTE    client task number
 09h    DWORD    object ID of client (big-endian)
 0Dh    DWORD    object ID of target server (big-endian)
        FFFFFFFh if any server acceptable
 11h  6 BYTEs    target execution time (year,month,day,hour,minute,second)
        FFFFFFFFFFFFh to execute as soon as possible
 17h  6 BYTEs    job entry time (year,month,day,hour,minute,second)
 1Dh    WORD    job number (big-endian)
 1Fh    WORD    job type (big-endian)
 21h    BYTE    job position
 22h    BYTE    job control flags
 23h 14 BYTEs    ASCIZ job file name
 31h  6 BYTEs    job file handle
 37h    BYTE    server station
 38h    BYTE    server task number
 39h    DWORD    object ID of server (big-endian)
 3Dh 50 BYTEs    ASCIZ job description string
 6Fh 152 BYTEs    client record area

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0036h (size of following results buffer)
 02h    BYTE    client station
 03h    BYTE    client task number
 04h    DWORD    object ID of client (big-endian)
 08h    DWORD    object ID of target server (big-endian)
 0Ch  6 BYTEs    target execution time (year,month,day,hour,minute,second)
 12h  6 BYTEs    job entry time (year,month,day,hour,minute,second)
 18h    WORD    job number (big-endian)
 1Ah    WORD    job type (big-endian)
 1Ch    BYTE    job position
 1Dh    BYTE    job control flags
 1Eh 14 BYTEs    ASCIZ job file name
 2Ch  6 BYTEs    job file handle
 32h    BYTE    server station
 33h    BYTE    server task number
 34h    DWORD    object ID of server or 00000000h (big-endian)
----------21E3--SF69-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CLOSE FILE AND START QUEUE JOB
    AH = E3h subfn 69h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h,D1h,D3h,D5h,D6h,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on the workstation which created the job
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    69h (subfunction "Close File and Start Queue Job")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF6A-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - REMOVE JOB FROM QUEUE
    AH = E3h subfn 6Ah
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h,D1h,D5h,D6h,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must have created the job or be an operator
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    6Ah (subfunction "Remove Job From Queue")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF6B-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - GET QUEUE JOB LIST
    AH = E3h subfn 6Bh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D0h-D3h,FCh,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on a workstation which is security-equivalent to a
      member of the Q_USERS or Q_OPERATORS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    6Bh (subfunction "Get Queue Job List")
 03h    DWORD    object ID of queue (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 1F6h)
 02h    WORD    job count (big-endian)
 04h  N WORDs    list of job numbers by position in queue (big-endian)
    WORD    maximum job numbers
----------21E3--SF6C-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - READ QUEUE JOB ENTRY
    AH = E3h subfn 6Ch
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h-D3h,D5h,FCh,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on a workstation which is security-equivalent to a
      member of the Q_USERS, Q_OPERATORS, or Q_SERVERS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    6Ch (subfunction "Read Queue Job Entry")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0100h (size of following results)
 02h    BYTE    client station number
 03h    BYTE    client task number
 04h    DWORD    object ID of client
 08h    DWORD    object ID of target server (big-endian)
        FFFFFFFFh if any server acceptable
 0Ch  6 BYTEs    target execution time (year,month,day,hour,minute,second)
        FFFFFFFFFFFFh if serviced as soon as possible
 12h  6 BYTEs    job entry time (year,month,day,hour,minute,second)
 18h    WORD    job number (big-endian)
 1Ah    WORD    job type (big-endian)
 1Ch    BYTE    job position
 1Dh    BYTE    job control flags
        bit 3: job will be serviced automatically if connection broken
        bit 4: job remains in queue after server aborts job
        bit 5: client has not filled associated job file
        bit 6: User Hold--job advances, but cannot be serviced until
            this bit is cleared by user or operator
        bit 7: Operator Hold--job advances, but cannot be serviced
            until this bit is cleared by an operator
 1Eh 14 BYTEs    ASCIZ job filename
 2Ch  6 BYTEs    job file handle
 32h    BYTE    server station
 33h    BYTE    server task number
 34h    DWORD    object ID of server
 38h 50 BYTEs    ASCIZ job description string
 6Ah 152 BYTEs    client record area
----------21E3--SF6D-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CHANGE QUEUE JOB ENTRY
    AH = E3h subfn 6Dh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h,D1h,D5h,D7h,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be an operator or the user who created the job
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Ch,AH=E3h/SF=6Eh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0105h (length of following data)
 02h    BYTE    6Dh (subfunction "Change Queue Job Entry")
 03h    DWORD    object ID of queue (big-endian)
 07h    BYTE    client station number
 08h    BYTE    client task number
 09h    DWORD    object ID of client
 0Dh    DWORD    object ID of target server (big-endian)
 11h  6 BYTEs    target execution time (year,month,day,hour,minute,second)
 17h  6 BYTEs    job entry time (year,month,day,hour,minute,second)
 1Dh    WORD    job number (big-endian)
 1Fh    WORD    job type (big-endian)
 21h    BYTE    job position
 22h    BYTE    job control flags
        bit 3: job will be serviced automatically if connection broken
        bit 4: job remains in queue after server aborts job
        bit 5: client has not filled associated job file
        bit 6: User Hold--job advances, but cannot be serviced until
            this bit is cleared by user or operator
        bit 7: Operator Hold--job advances, but cannot be serviced
            until this bit is cleared by an operator
 23h 14 BYTEs    ASCIZ job filename
 31h  6 BYTEs    job file handle
 37h    BYTE    server station
 38h    BYTE    server task number
 39h    DWORD    object ID of server
 3Dh 50 BYTEs    ASCIZ job description string
 6Fh 152 BYTEs    client record area

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF6E-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CHANGE QUEUE JOB POSITION
    AH = E3h subfn 6Eh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h,D1h,D5h,D6h,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be an operator
    if the specified position is greater than the number of jobs in the
      queue, the job is placed at the end of the queue
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Ch,AH=E3h/SF=6Dh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0008h (length of following data)
 02h    BYTE    6Eh (subfunction "Change Queue Job Position")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)
 09h    BYTE    new position in queue (01h-FAh)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF6F-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - ATTACH QUEUE SERVER TO QUEUE
    AH = E3h subfn 6Fh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,DAh,DBh,FEh,FFh)
        (see also AH=E3h/SF=64h)
        FFh bindery failure, or no such property, or no such member
Desc:    attach the calling job server to the specified queue
Notes:    this function is supported by Advanced NetWare 2.1+
    a queue may have up to 25 job servers attached
    the calling workstation must be security-equivalent to a member of the
      queue's Q_SERVERS property
SeeAlso: AH=E3h/SF=70h,AH=E3h/SF=71h,AH=E3h/SF=72h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    6Fh (subfunction "Attach Queue Server To Queue")
 03h    DWORD    object ID of queue (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF70-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - DETACH QUEUE SERVER FROM QUEUE
    AH = E3h subfn 70h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D2h,FEh,FFh) (see AH=E3h/SF=64h)
Desc:    remove the calling job server from the specified queue's list of
      servers
Notes:    this function is supported by Advanced NetWare 2.1+
    the caller must have previously attached itself to the queue
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=72h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    70h (subfunction "Detach Queue Server From Queue")
 03h    DWORD    object ID of queue (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF71-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - SERVICE QUEUE JOB AND OPEN FILE
    AH = E3h subfn 71h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see AH=E3h/SF=68h)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,D5h,D9h,DAh,FEh,FFh)
        (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    the caller must be on a workstation which is security-equivalent to a
      member of the queue's Q_USERS, Q_OPERATORS, or Q_SERVERS properties
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=72h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    71h (subfunction "Service Queue Job and Open File")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    target job type (big-endian)
        FFFFh any
----------21E3--SF72-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - FINISH SERVICING QUEUE JOB AND FILE
    AH = E3h subfn 72h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h,D1h,D6h) (see AH=E3h/SF=64h)
Desc:    inform the Queue Management System (QMS) that the queue server has
      completed a job
Notes:    this function is supported by Advanced NetWare 2.1+
    the caller must be a job server which has previously obtained a job
      for servicing
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=71h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of request buffer:
Offset    Size    Description
 00h    WORD    000Bh (length of following data)
 02h    BYTE    72h (subfunction "Finish Servicing Queue Job and File")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)
 09h    DWORD    charge (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF73-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - ABORT SERVICING QUEUE JOB AND FILE
    AH = E3h subfn 73h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h,D1h,D6h,D9h) (see AH=E3h/SF=64h)
Desc:    inform the Queue Management System (QMS) that the queue server is
      unable to service a previously-accepted job
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=71h,AH=E3h/SF=72h,AH=E3h/SF=76h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    73h (subfunction "Abort Servicing Queue Job and File")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF74-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CHANGE TO CLIENT RIGHTS
    AH = E3h subfn 74h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,D0h,D1h,D5h,D9h) (see AH=E3h/SF=64h)
Desc:    temporarily assume the login identity of the client submitting the
      job being serviced
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be a job server which has obtained a job for servicing
SeeAlso: AH=E3h/SF=75h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    74h (subfunction "Change To Client Rights")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF75-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - RESTORE QUEUE SERVER RIGHTS
    AH = E3h subfn 75h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,D5h,D9h,DAh,FEh,FFh)
        (see AH=E3h/SF=64h)
Desc:    restore server's own identity after assuming the login identity of the
      client submitting the job being serviced
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be a job server which has previously changed its identity
SeeAlso: AH=E3h/SF=74h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    75h (subfunction "Change To Client Rights")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF76-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - READ QUEUE SERVER CURRENT STATUS
    AH = E3h subfn 76h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D1h-D3h,F1h,FCh,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on a workstation which is security-equivalent to a
      member of the Q_USERS or Q_OPERATORS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ch,AH=E3h/SF=6Fh,AH=E3h/SF=77h,AH=E3h/SF=78h

Format of request buffer:
Offset    Size    Description
 00h    WORD    000Ah (length of following data)
 02h    BYTE    76h (subfunction "Read Queue Server Current Status")
 03h    DWORD    object ID of queue (big-endian)
 07h    DWORD    object ID of server (big-endian)
 0Bh    BYTE    server station

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0040h (size of following results)
 02h 64 BYTEs    server status record (format depends on server)
        first four bytes should contain estimated "price" for an
        average job
----------21E3--SF76-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - READ QUEUE SERVER CURRENT STATUS
    AH = E3h subfn 76h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (00h,96h,9Ch,D0h,D1h,FEh,FFh) (see AH=E3h/SF=64h)
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be a job server which has attached itself to the queue
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ch,AH=E3h/SF=6Fh,AH=E3h/SF=76h,AH=E3h/SF=78h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0045h (length of following data)
 02h    BYTE    77h (subfunction "Set Queue Server Current Status")
 03h    DWORD    object ID of queue (big-endian)
 02h 64 BYTEs    server status record (format depends on server)
        first four bytes should contain estimated "price" for an
        average job

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SF78-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - GET QUEUE JOB'S FILE SIZE
    AH = E3h subfn 78h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status (see also AH=E3h/SF=64h)
        00h successful
Notes:    this function is supported by Advanced NetWare 2.1+
    caller must be on a workstation which is security-equivalent to a
      member of the queue's Q_USERS, Q_OPERATORS, or Q_SERVERS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ch,AH=E3h/SF=71h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    78h (subfunction "Get Queue Job's File Size")
 03h    DWORD    object ID of queue (big-endian)
 07h    WORD    job number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 000Ah (size of following results)
 02h    DWORD    object ID of queue (big-endian)
 06h    WORD    job number (big-endian)
 08h    DWORD    size of job file in bytes (big-endian)
----------21E3--SF96-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - GET ACCOUNT STATUS
    AH = E3h subfn 96h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C0h    no account privileges
        C1h    no account balance
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=97h,AH=E3h/SF=98h,AH=E3h/SF=99h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 33h)
 02h    BYTE    96h (subfunction "Get Account Status")
 03h    WORD    type of bindery object (big-endian)
 05h    BYTE    length of object name (01h to 2Fh)
 06h  N BYTEs    object name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) length of following buffer space
 02h    DWORD    account balance (big-endian)
 06h    DWORD    credit limit (big-endian)
        signed number indicating lowest allowable account balance
 0Ah 120 BYTEs    reserved
 82h    DWORD    object ID, server 1 (big-endian)
 86h    DWORD    hold amount, server 1 (big-endian)
    ...
 F8h    DWORD    object ID, server 16 (big-endian)
 FCh    DWORD    hold amount, server 16 (big-endian)
Note:    the reply buffer lists the servers which have placed holds on a portion
      of the account balance, and the amount reserved by each
----------21E3--SF97-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - SUBMIT ACCOUNT CHARGE
    AH = E3h subfn 97h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C0h    no account privileges
        C1h    no account balance
        C2h credit limit exceeded
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=96h,AH=E3h/SF=98h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 13Fh)
 02h    BYTE    97h (subfunction "Submit Account Charge")
 03h    WORD    service type (big-endian)
 05h    DWORD    amount to be charged to account (big-endian)
 09h    DWORD    amount of prior hold to be cancelled (big-endian)
 0Dh    WORD    type of bindery object (big-endian)
 0Fh    WORD    type of comment (big-endian)
        8000h-FFFFh reserved for experimental use
 11h    BYTE    length of object's name
 12h  N BYTEs    object name
    BYTE    length of comment
      N BYTEs    comment

Format of reply buffer:
Offset    Size    Description
 00h    WORD    0000h (no data returned)
----------21E3--SF98-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - SUBMIT ACCOUNT HOLD
    AH = E3h subfn 98h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C0h    no account privileges
        C1h    no account balance
        C2h credit limit exceeded
        C3h too many holds on account
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=96h,AH=E3h/SF=97h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 37h)
 02h    BYTE    98h (subfunction "Submit Account Hold")
 03h    DWORD    amount of account balance to reserve (big-endian)
 07h    WORD    type of bindery object
 09h    BYTE    length of object's name
 0Ah  N BYTEs    object name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    0000h (no data returned)
----------21E3--SF99-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - SUBMIT ACCOUNT NOTE
    AH = E3h subfn 99h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C0h    no account privileges
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=96h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 137h)
 02h    BYTE    99h (subfunction "Submit Account Note")
 03h    WORD    type of service (big-endian)
 05h    WORD    type of bindery object (big-endian)
 07h    WORD    type of comment (big-endian)
        8000h-FFFFh reserved for experimental use
 09h    BYTE    length of object's name
 0Ah  N BYTEs    object name
    BYTE    length of comment
      N BYTEs    comment

Format of reply buffer:
Offset    Size    Description
 00h    WORD    0000h (no data returned)
----------21E3--SFC8-------------------------
INT 21 - Novell NetWare - FILE SERVER - CHECK CONSOLE PRIVILEGES
    AH = E3h subfn C8h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Desc:    determine whether the caller is a console operator
Notes:    this function is supported by Advanced NetWare 2.1+
    NetWare determines console privileges by checking the file server's
      OPERATOR property for the caller's object ID
SeeAlso: AH=E3h/SF=C9h,AH=E3h/SF=D1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    C8h (subfunction "Check Console Privileges")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFC9-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER DESCRIPTION STRINGS
    AH = E3h subfn C9h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must be attached to the file server
SeeAlso: AH=E3h/SF=11h,AH=E3h/SF=CDh,AH=E3h/SF=E8h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    C9h (subfunction "Get File Server Description Strings")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0200h (size of following results buffer)
 02h    var    ASCIZ name of company distributing this copy of NetWare
    var    ASCIZ version and revision
      9 BYTEs    ASCIZ revision date (mm/dd/yy)
    var    ASCIZ copyright notice
----------21E3--SFCA-------------------------
INT 21 - Novell NetWare - FILE SERVER - SET FILE SERVER DATE AND TIME
    AH = E3h subfn CAh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=2Bh,AH=2Dh,AH=E3h/SF=C8h,AH=E7h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0007h (length of following data)
 02h    BYTE    CAh (subfunction "Set File Server Date And Time")
 03h    BYTE    year (00-79 = 2000-2079, 80-99 = 1980-1999)
 04h    BYTE    month (1-12)
 05h    BYTE    day (1-31)
 06h    BYTE    hour (0-23)
 07h    BYTE    minute
 08h    BYTR    second

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFCB-------------------------
INT 21 - Novell NetWare - FILE SERVER - DISABLE FILE SERVER LOGIN
    AH = E3h subfn CBh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CCh,AH=E3h/SF=D3h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    CBh (subfunction "Disable File Server Login")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFCC-------------------------
INT 21 - Novell NetWare - FILE SERVER - ENABLE FILE SERVER LOGIN
    AH = E3h subfn CCh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CBh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    CCh (subfunction "Enable File Server Login")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFCD-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER LOGIN STATUS
    AH = E3h subfn CDh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CBh,AH=E3h/SF=CCh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    CDh (subfunction "Get File Server Login Status")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0001h (size of following results buffer)
 02h    BYTE    login state (00h disabled, 01h enabled)
----------21E3--SFCE-------------------------
INT 21 - Novell NetWare - FILE SERVICES - PURGE ALL ERASED FILES
    AH = E3h subfn CEh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
    all files marked for deletion on the file server are purged, regardless
      of which workstation actually erased them
    the calling workstation must have console operator privileges
SeeAlso: AH=13h,AH=E2h/SF=10h,AH=E3h/SF=C8h,AX=F244h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    CEh (subfunction "Purge All Erased Files")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFCF-------------------------
INT 21 - Novell NetWare - FILE SERVER - DISABLE TRANSACTION TRACKING
    AH = E3h subfn CFh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D0h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    CFh (subfunction "Disable Transaction Tracking")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFD0-------------------------
INT 21 - Novell NetWare - FILE SERVER - ENABLE TRANSACTION TRACKING
    AH = E3h subfn D0h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Desc:    restart transaction tracking after being stopped either explicitly by
      AH=E3h/SF=CFh or automatically due to a full transaction volume
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CFh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    D0h (subfunction "Enable Transaction Tracking")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFD1-------------------------
INT 21 - Novell NetWare - FILE SERVER - SEND CONSOLE BROADCAST
    AH = E3h subfn D1h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
    the broadcast message will not be received by workstations which have
      disabled broadcasts with AH=E1h/SF=02h
SeeAlso: AH=E1h/SF=02h,AH=E1h/SF=09h,AH=E3h/SF=C8h,AH=E3h/SF=D3h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max A2h)
 02h    BYTE    D1h (subfunction "Send Console Broadcast")
 03h    BYTE    number of connections to receive message
        00h = all, else specific list below
 04h  N BYTEs    connection list
    BYTE    length of message (max 3Ch)
      N BYTEs    message

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFD2-------------------------
INT 21 - Novell NetWare - FILE SERVER - CLEAR CONNECTION NUMBER
    AH = E3h subfn D2h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Desc:    close the open files and release all file locks for a connection,
      abort transactions if a TTS file server, and detach from the file
      server
Notes:    this function is supported by Advanced NetWare 2.1+
    the caller must have SUPERVISOR privileges
SeeAlso: AH=E3h/SF=C9h,AH=E3h/SF=D1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    D2h (subfunction "Clear Connection Number")
 03h    BYTE    connection number

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFD3-------------------------
INT 21 - Novell NetWare - FILE SERVER - DOWN FILE SERVER
    AH = E3h subfn D3h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
        FFh files open
Desc:    take down the file server
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have SUPERVISOR privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CBh,AH=E3h/SF=CFh,AH=E3h/SF=D1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    D3h (subfunction "Down File Server")
 03h    BYTE    flag: force down even if files open if nonzero

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0000h (no results returned)
----------21E3--SFD4-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SYSTEM STATISTICS
    AH = E3h subfn D4h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=0Eh,AH=E3h/SF=C8h,AH=E3h/SF=D9h,AH=E3h/SF=E7h,AH=E3h/SF=E8h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    D4h (subfunction "Get File System Statistics")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0028h (size of following results buffer)
 02h    DWORD    clock ticks since system started
 06h    WORD    maximum open files set by configuration
 08h    WORD    maximum files open concurrently
 0Ah    WORD    current number of open files
 0Ch    DWORD    total files opened
 10h    DWORD    total file read requests
 14h    DWORD    total file write requests
 18h    WORD    current changed FATs
 1Ah    WORD    total changed FATs
 1Ch    WORD    number of FAT write errors
 1Eh    WORD    number of fatal FAT write errors
 20h    WORD    number of FAT scan errors
 22h    WORD    maximum concurrently-indexed files
 24h    WORD    current number of indexed files
 26h    WORD    number of attached indexed files
 28h    WORD    number of indexed files available
Note:    all fields except the first are big-endian
----------21E3--SFD5-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET TRANSACTION TRACKING STATISTICS
    AH = E3h subfn D5h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CFh,AH=E3h/SF=D0h,AH=E3h/SF=E8h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    D5h (subfunction "TTS Get Statistics")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) length of following results buffer (max 1BCh)
 02h    DWORD    clock ticks since system started (big-endian)
 06h    BYTE    transaction tracking supported if nonzero
        (all following fields are invalid if zero)
 07h    BYTE    transaction tracking enabled
 08h    WORD    transaction volume number (big-endian)
 0Ah    WORD    maximum simultaneous transactions configured (big-endian)
 0Ch    WORD    maximum simultaneous transactions since startup (big-endian)
 0Eh    WORD    current transactions in progress (big-endian)
 10h    DWORD    total transactions performed (big-endian)
 14h    DWORD    total write transactions (big-endian)
 18h    DWORD    total transactions backed out (big-endian)
 1Ch    WORD    number of unfilled backout requests (big-endian)
 1Eh    WORD    disk blocks used for transaction tracking (big-endian)
 20h    DWORD    blocks allocated for tracked-file FATs (big-endian)
 24h    DWORD    number of file size changes during a transaction (big-endian)
 28h    DWORD    number of file truncations during a transaction (big-endian)
 2Ch    BYTE    number of records following
 2Dh    Active Transaction Records [array]
    Offset    Size    Description
     00h    BYTE    logical connection number
     01h    BYTE    task number
----------21E3--SFD6-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DISK CACHE STATISTICS
    AH = E3h subfn D6h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D5h,AH=E3h/SF=D8h,AH=E3h/SF=D9h,AH=E3h/SF=E6h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    D6h (subfunction "Get Disk Cache Statistics")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 004Eh (length of following results buffer)
 02h    DWORD    clock ticks since system started (big-endian)
 06h    WORD    number of cache buffers (big-endian)
 08h    WORD    size of cache buffer in bytes (big-endian)
 0Ah    WORD    number of dirty cache buffers (big-endian)
 0Ch    DWORD    number of cache read requests (big-endian)
 10h    DWORD    number of cache write requests (big-endian)
 14h    DWORD    number of cache hits (big-endian)
 18h    DWORD    number of cache misses (big-endian)
 1Ch    DWORD    number of physical read requests (big-endian)
 20h    DWORD    number of physical write requests (big-endian)
 24h    WORD    number of physical read errors (big-endian)
 26h    WORD    number of physical write errors (big-endian)
 28h    DWORD    cache get requests (big-endian)
 2Ch    DWORD    cache full write requests (big-endian)
 30h    DWORD    cache partial write requests (big-endian)
 34h    DWORD    background dirty writes (big-endian)
 38h    DWORD    background aged writes (big-endian)
 3Ch    DWORD    total cache writes (big-endian)
 40h    DWORD    number of cache allocations (big-endian)
 44h    WORD    thrashing count (big-endian)
 46h    WORD    number of times LRU block was dirty (big-endian)
 48h    WORD    number of reads on cache blocks not yet filled by writes
        (big-endian)
 4Ah    WORD    number of times a fragmented write occurred (big-endian)
 4Ch    WORD    number of cache hits on unavailable block (big-endian)
 4Eh    WORD    number of times a cache block was scrapped (big-endian)
----------21E3--SFD7-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DRIVE MAPPING TABLE
    AH = E3h subfn D7h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D6h,AH=E3h/SF=D9h,AH=E3h/SF=E6h,AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    D7h (subfunction "Get Drive Mapping Table")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 00ECh (length of following results buffer)
 02h    DWORD    clock tick elapsed since system started (big-endian)
 06h    BYTE    fault tolerance (SFT) level
 07h    BYTE    number of logical drives attached to server
 08h    BYTE    number of physical drives attached to server
 09h  5 BYTEs    disk channel types (00h none, 01h XT, 02h AT, 03h SCSI,
        04h disk coprocessor drive, 32h-FFh value-added drive types)
 0Eh    WORD    number of outstanding controller commands (big-endian)
 10h 32 BYTEs    drive mapping table (FFh = no such drive)
 30h 32 BYTEs    drive mirror table (secondary physical drive, FFh = none)
 50h 32 BYTEs    dead mirror table (last drive mapped to, FFh if never mirrored)
 70h    BYTE    physical drive being remirrored (FFh = none)
 71h    BYTE    reserved
 72h    DWORD    remirrored block (big-endian)
 76h 60 BYTEs    SFT error table (internal error counters)
----------21E3--SFD8-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PHYSICAL DISK STATISTICS
    AH = E3h subfn D8h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D9h,AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    D8h (subfunction "Get Physical Disk Statistics")
 03h    BYTE    physical disk number

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 005Dh (size of following results record)
 02h    DWORD    clock ticks since system started (big-endian)
 06h    BYTE    physical disk channel
 07h    BYTE    flag: drive removable if nonzero
 08h    BYTE    physical drive type
 09h    BYTE    drive number within controller
 0Ah    BYTE    controller number
 0Bh    BYTE    controller type
 0Ch    DWORD    size of drive in 4K disk blocks (big-endian)
 10h    WORD    number of cylinders on drive (big-endian)
 12h    BYTE    number of heads
 13h    BYTE    number of sectors per track
 14h 64 BYTEs    ASCIZ drive make and model
 54h    WORD    number of I/O errors (big-endian)
 56h    DWORD    start of Hot Fix table (big-endian)
 5Ah    WORD    size of Hot Fix table (big-endian)
 5Ch    WORD    number of Hot Fix blocks available (big-endian)
 5Eh    BYTE    flag: Hot Fix disabled if nonzero
----------21E3--SFD9-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DISK CHANNEL STATISTICS
    AH = E3h subfn D9h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D8h,AH=E3h/SF=E6h,AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    D9h (subfunction "Get Disk Channel Statistics")
 03h    BYTE    channel number

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 00A8h (size of following results record)
 02h    DWORD    clock ticks since system started (big-endian)
 06h    WORD    channel run state (big-endian)
        00h running
        01h being stopped
        02h stopped
        03h nonfunctional
 08h    WORD    channel synchronization state (big-endian)
        00h not in use
        02h used by NetWare, no other requests
        04h used by NetWare, other requests
        06h in use, not needed by NetWare
        08h in use, needed by NetWare
        0Ah channel released, NetWare should use it
 0Ah    BYTE    driver type
 0Bh    BYTE    major version of driver
 0Ch    BYTE    minor version of driver
 0Dh 65 BYTEs    ASCIZ driver description
 4Eh    WORD    first I/O address used (big-endian)
 50h    WORD    length of first I/O address (big-endian)
 52h    WORD    second I/O address used (big-endian)
 54h    WORD    length of second I/O address (big-endian)
 56h  3 BYTEs    first shared memory address
 59h  2 BYTEs    length of first shared memory address
 5Bh  3 BYTEs    second shared memory address
 5Eh  2 BYTEs    length of second shared memory address
 60h    BYTE    first interrupt number in-use flag
 61h    BYTE    first interrupt number used
 62h    BYTE    second interrupt number in-use flag
 63h    BYTE    second interrupt number used
 64h    BYTE    first DMA channel in-use flag
 65h    BYTE    first DMA channel used
 66h    BYTE    second DMA channel in-use flag
 67h    BYTE    second DMA channel used
 68h    BYTE    flags
 69h    BYTE    reserved
 6Ah 80 BYTEs    ASCIZ configuration description
----------21E3--SFDA-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S TASK INFORMATION
    AH = E3h subfn DAh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DBh,AH=E3h/SF=DFh,AH=E3h/SF=E1h,AH=E3h/SF=E5h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0003h (length of following data)
 02h    BYTE    DAh (subfunction "Get Connection's Task Information")
 03h    WORD    logical connection number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 1FEh)
 02h    BYTE    lock status of connection
        00h no locks
        01h waiting on physical record lock
        02h waiting on file lock
        03h waiting on logical record lock
        04h waiting on semaphore
 03h    var    Lock Status Information (see below)
 N    BYTE    number of records following
 N+1    Active Task Information Records [array]
    Offset    Size    Description
     00h    BYTE    task number (01h-FFh)
     01h    BYTE    task state
            01h in TTS explicit transaction
            02h in TTS implicit transaction
            04h shared fileset lock active

Format of Lock Status Information:
Offset    Size    Description
---lock status 00h---
 no fields
---lock status 01h---
 00h    BYTE    number of waiting task
 01h    DWORD    start address
 05h    DWORD    end address
 09h    BYTE    volume number
 0Ah    WORD    directory entry number
 0Ch 14 BYTEs    ASCIZ filename
---lock status 02h---
 00h    BYTE    number of waiting task
 01h    BYTE    volume number
 02h    WORD    directory entry number
 04h 14 BYTEs    ASCIZ filename
---lock status 03h---
 00h    BYTE    number of waiting task
 01h    BYTE    length of record name
 02h  N BYTEs    ASCIZ record name
---lock status 04h---
 00h    BYTE    number of waiting task
 01h    BYTE    length of semaphore's name
 02h  N BYTEs    ASCIZ semaphore name
----------21E3--SFDB-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S OPEN FILES
    AH = E3h subfn DBh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E2h/SF=1Ah,AH=E3h/SF=C8h,AH=E3h/SF=DAh,AH=E3h/SF=DCh,AH=E3h/SF=DFh
SeeAlso: AH=E3h/SF=E1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    DBh (subfunction "Get Connection's Open Files")
 03h    WORD    logical connection number (big-endian)
 05h    WORD    last record seen (big-endian)
        0000h on first call

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 1FEh)
 02h    WORD    next request record (place in "last record" field on next call)
        0000h if no more records
 04h    BYTE    number of records following
 05h    File Information Records [array]
    Offset    Size    Description
     00h    BYTE    task number
     01h    BYTE    lock flags (see below)
     02h    BYTE    access flags (see below)
     03h    BYTE    lock type
            00h no lock
            FEh file lock
            FFh locked by Begin Share File Set
     04h    BYTE    volume number (00h-1Fh)
     05h    WORD    directory entry (big-endian)
     07h 14 BYTEs    ASCIZ filename

Bitmask of lock flags:
 bit 0: file is locked
 bit 1: file opened Shareable
 bit 2: logged
 bit 3: file opened Normal
 bit 6: TTS holding lock
 bit 7: Transaction Flag set on file

Bitmask of access flags:
 bit 0: file open for reading by calling station
 bit 1: file open for writing by calling station
 bit 2: deny reads by other stations
 bit 3: deny writes by other stations
 bit 4: file detached
 bit 5: TTS Holding Detach
 bit 6: TTS Holding Open
----------21E3--SFDC-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTIONS USING A FILE
    AH = E3h subfn DCh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DAh,AH=E3h/SF=DBh,AH=E3h/SF=DFh,AH=E3h/SF=E1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 104h)
 02h    BYTE    DCh (subfunction "Get Connections Using a File")
 03h    WORD    last record (big-endian)
        0000h on first call
 05h    BYTE    directory handle
 06h    BYTE    length of file path
 07h  N BYTEs    ASCIZ file path

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 1FEh)
 02h    WORD    count of tasks which have opened or logged file (big-endian)
 04h    WORD    count of tasks which have opened file (big-endian)
 06h    WORD    count of opens for reading (big-endian)
 08h    WORD    count of opens for writing (big-endian)
 0Ah    WORD    deny read count (big-endian)
 0Ch    WORD    deny write count (big-endian)
 0Eh    WORD    next request record (place in "last record" field on next call)
        0000h if no more records
 10h    BYTE    locked flag
        00h not locked exclusively
        else locked exclusively
 11h    BYTE    number of records following
 12h    File Usage Information Records [array]
    Offset    Size    Description
     00h    WORD    logical connection number (big-endian)
     02h    BYTE    task number
     03h    BYTE    lock flags (see AH=E3h/SF=DBh)
     04h    BYTE    access flags (see AH=E3h/SF=DBh)
     05h    BYTE    lock type
            00h no lock
            FEh file lock
            FFh locked by Begin Share File Set
----------21E3--SFDD-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PHYSICAL RECORD LOCKS BY CONN&FILE
    AH = E3h subfn DDh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
        FFh file not open
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DEh,AH=E3h/SF=DFh

Format of request buffer:
Offset    Size    Description
 00h    WORD    0016h (length of following data)
 02h    BYTE    DDh (subfunction "Get Physical Record Locks by Connection and
            File")
 03h    WORD    logical connection number (big-endian)
 05h    WORD    last record seen (big-endian)
        0000h on first call
 07h    BYTE    volume number (00h-1Fh)
 08h    WORD    directory handle (big-endian)
 0Ah 14 BYTEs    ASCIZ filename

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 1FEh)
 02h    WORD    next request record (place in "last record" on next call)
        0000h if no more records
 04h    BYTE    number of physical record locks
 05h    BYTE    number of records following
 06h    Physical Record Lock Info [array]
    Offset    Size    Description
     00h    BYTE    task number
     01h    BYTE    lock status (see below)
     02h    DWORD    starting offset of record in file (big-endian)
     06h    DWORD    ending offset of record in file (big-endian)

Bitmask of lock status:
 bit 0: exclusive lock
 bit 1: shareable lock
 bit 2: logged
 bit 6: lock held by TTS
----------21E3--SFDE-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PHYSICAL RECORD LOCKS BY FILE
    AH = E3h subfn DEh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
        FFh file not open
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DDh,AH=E3h/SF=DFh

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 104h)
 02h    BYTE    DEh (subfunction "Get Physical Record Locks by File")
 03h    WORD    last record seen (big-endian)
        0000h on first call
 05h    BYTE    directory handle
 06h    BYTE    length of filename
 07h  N BYTEs    ASCIZ filename

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 1FEh)
 02h    WORD    next request record (place in "last record" on next call)
        0000h if no more records
 04h    BYTE    number of physical record locks
 05h    BYTE    number of records following
 06h    Physical Record Lock Info [array]
    Offset    Size    Description
     00h    WORD    number of tasks logging record (big-endian)
     02h    WORD    number of tasks with shareable lock (big-endian)
     04h    DWORD    starting offset of record in file (big-endian)
     08h    DWORD    ending offset of record in file (big-endian)
     0Ch    WORD    logical connection number (big-endian)
     0Eh    BYTE    task number
     0Fh    BYTE    lock type
            00h none
            FEh file lock
            FFh Begin Share File Set lock
----------21E3--SFDF-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET LOGICAL RECORDS BY CONNECTION
    AH = E3h subfn DFh
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DDh,AH=E3h/SF=E0h,AH=E3h/SF=E2h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    DFh (subfunction "Get Logical Records By Connection")
 03h    WORD    logical connection number (big-endian)
 05h    WORD    last record seen (big-endian)
        0000h on first call

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 1FEh)
 02h    WORD    next request record (place in "last record" field on next call)
        0000h if no more locked records
 09h    BYTE    number of records following
 0Ah    Logical Lock Information Records [list]
    Offset    Size    Description
     00h    BYTE    task number
     01h    BYTE    lock status (see AH=E3h/SF=DDh)
     02h    BYTE    length of logical lock's name
     03h  N BYTEs    logical lock's name
----------21E3--SFE0-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET LOGICAL RECORD INFORMATION
    AH = E3h subfn E0h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DDh,AH=E3h/SF=DFh,AH=E3h/SF=E2h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 67h)
 02h    BYTE    E0h (subfunction "Get Logical Record Information")
 03h    WORD    last record seen (big-endian)
        0000h on first call
 05h    BYTE    length of logical record's name
 06h  N BYTEs    logical record's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 200h)
 02h    WORD    number of logical connections logging the record (big-endian)
 04h    WORD    number of logical connections with shareable lock (big-endian)
 06h    WORD    next request record (place in "last record" field on next call)
 08h    BYTE    locked exclusively if nonzero
 09h    BYTE    number of records following
 0Ah    Task Information Records [array]
    Offset    Size    Description
     00h    WORD    logical connection number (big-endian)
     02h    BYTE    task number
     03h    BYTE    lock status (see AH=E3h/SF=DFh)
----------21E3--SFE1-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S SEMAPHORES
    AH = E3h subfn E1h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DBh,AH=E3h/SF=DFh,AH=E3h/SF=E2h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    E1h (subfunction "Get Connection's Semaphores")
 03h    WORD    logical connection number (big-endian)
 05h    WORD    last record seen (big-endian)
        0000h on first call

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results record (max 1FEh)
 02h    WORD    next request record (place in "last record" field on next call)
 04h    BYTE    number of records following
 05h    Semaphore Information Records [array]
    Offset    Size    Description
     00h    WORD    open count (big-endian)
     02h    BYTE    semaphore value (-128 to 127)
     03h    BYTE    task number
     04h    BYTE    lock type
     05h    BYTE    length of semaphore's name
     06h  N BYTEs    semaphore's name
         14 BYTEs    filename
----------21E3--SFE2-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET SEMAPHORE INFORMATION
    AH = E3h subfn E2h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=E1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    length of following data (max 83h)
 02h    BYTE    E2h (subfunction "Get LAN Driver's Configuration Information")
 03h    WORD    last record seen (big-endian)
        0000h on first call
 05h    BYTE    length of semaphore's name (01h-7Fh)
 06h  N BYTEs    semaphore's name

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 1FEh)
 02h    WORD    next request record (place in "last record" on next call)
        0000h if no more
 04h    WORD    number of logical connections opening semaphore (big-endian)
 06h    BYTE    semaphore value (-127 to 128)
 07h    BYTE    number of records following
 08h    Semaphore Information [array]
    Offset    Size    Description
     00h    WORD    logical connection number (big-endian)
     02h    BYTE    task number
----------21E3--SFE3-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET LAN DRIVER'S CONFIGURATION INFO
    AH = E3h subfn E3h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=E7h,AH=E3h/SF=E8h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    E3h (subfunction "Get LAN Driver's Configuration Information")
 03h    BYTE    LAN board (00h-03h)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 00ACh (size of following results buffer)
 02h  4 BYTEs    network number
 06h  6 BYTEs    node number
 0Ch    BYTE    LAN driver installed (00h no--remaining fields invalid)
 0Dh    BYTE    option number selected at configuration time
 0Eh 160 BYTEs    configuration text
        ASCIZ hardware type
        ASCIZ hardware settings
----------21E3--SFE5-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S USAGE STATISTICS
    AH = E3h subfn E5h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    one must have console operator privileges to get statistics for logical
      connections other than one's own
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DAh,AH=E3h/SF=DBh,AH=E3h/SF=E1h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0003h (length of following data)
 02h    BYTE    E5h (subfunction "Get Connection's Usage Statistics")
 03h    WORD    logical connection number (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0014h (size of following results record)
 02h    DWORD    clock ticks since server started (big-endian)
 06h  6 BYTEs    bytes read
 0Ch  6 BYTEs    bytes written
 12h    DWORD    total request packets (big-endian)
----------21E3--SFE6-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET BINDERY OBJECT DISK SPACE LEFT
    AH = E3h subfn E6h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Notes:    this function is supported by Advanced NetWare 2.1+
    one must have console operator privileges to get the free space for
      other bindery objects
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=E8h,AH=E3h/SF=E9h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0005h (length of following data)
 02h    BYTE    E6h (subfunction "Get Bindery Object Disk Space Left")
 03h    DWORD    object ID (big-endian)

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 000Fh (size of following results buffer)
 02h    DWORD    clock ticks elapsed since server started (big-endian)
 06h    DWORD    object ID (big-endian)
 0Ah    DWORD    4K disk blocks available to user (big-endian)
 0Eh    BYTE    restrictions
        00h enforced
        FFh not enforced
----------21E3--SFE7-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER LAN I/O STATISTICS
    AH = E3h subfn E7h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=0Eh,AH=E3h/SF=11h,AH=E3h/SF=D3h,AH=E3h/SF=E8h,AH=E7h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    E7h (subfunction "Get File Server LAN I/O Statistics")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0042h (size of following results buffer)
 02h    DWORD    clock ticks since system started
 06h    WORD    total routing buffers
 08h    WORD    maximum routing buffers used
 0Ah    WORD    current routing buffers used
 0Ch    DWORD    total file service packets
 10h    WORD    number of file service packets buffered
 12h    WORD    number of invalid connection packets
 14h    WORD    packets with bad logical connection numbers
 16h    WORD    number of packets received during processing
 18h    WORD    number of requests reprocessed
 1Ah    WORD    packets with bad sequence numbers
 1Ch    WORD    number of duplicate replies sent
 1Eh    WORD    number of acknowledgements sent
 20h    WORD    number of packets with bad request types
 22h    WORD    requests to attach to ws for which a request is being processed
 24h    WORD    requests to attach from ws which is already attaching
 26h    WORD    number of forged detach requests
 28h    WORD    detach requests with bad connection number
 2Ah    WORD    requests to detach from ws for which requests pending
 2Ch    WORD    number of cancelled replies
 2Eh    WORD    packets discarded due to excessive hop count
 30h    WORD    packets discarded due to unknown net
 32h    WORD    incoming packets discarded for lack of DGroup buffer
 34h    WORD    outgoing packets discarded due to lack of buffer
 36h    WORD    received packets destined for B,C, or D side drivers
 38h    DWORD    number of NetBIOS packets propagated through net
 3Ch    DWORD    total number of non-file-service packets
 40h    DWORD    total number of routed packets
Note:    all fields except the first are big-endian
----------21E3--SFE8-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER MISC INFORMATION
    AH = E3h subfn E8h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
        C6h no console rights
Note:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=0Eh,AH=E3h/SF=11h,AH=E3h/SF=CDh,AH=E3h/SF=E7h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0001h (length of following data)
 02h    BYTE    E8h (subfunction "Get File Server Misc Information")

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) size of following results buffer (max 0048h)
 02h    DWORD    clock ticks since system started
 06h    BYTE    CPU type
        00h Motorola 68000
        01h Intel 8086, 8088, or V20
        02h Intel 80286+
 07h    BYTE    reserved
 08h    BYTE    number of service processes in server
 09h    BYTE    server utilization in percent
 0Ah    WORD    maximum bindery objects set by configuration (big-endian)
        0000h = unlimited
 0Ch    WORD    maximum number of bindery objects used (big-endian)
 0Eh    WORD    current number of bindery objects in use (big-endian)
 10h    WORD    total server memory in K (big-endian)
 12h    WORD    wasted server memory in K (big-endian)
        normally 0000h
 14h    WORD    number of records following (01h-03h)
 16h    Dynamic Memory Information [array]
    Offset    Size    Description
     00h    DWORD    total dynamic space (big-endian)
     04h    DWORD    maximum dynamic space used (big-endian)
     08h    DWORD    current dynamic space usage (big-endian)
----------21E3--SFE9-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME INFORMATION
    AH = E3h subfn E9h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (see below)
Return: AL = status
        00h successful
Notes:    this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=DAh,AH=E2h/SF=15h

Format of request buffer:
Offset    Size    Description
 00h    WORD    0002h (length of following data)
 02h    BYTE    E9h (subfunction "Get Volume Information")
 03h    BYTE    directory handle

Format of reply buffer:
Offset    Size    Description
 00h    WORD    (call) 0028h (length of following results buffer)
 02h    DWORD    elapsed system time (big-endian)
 06h    BYTE    volume number
 07h    BYTE    logical drive number
 08h    WORD    sectors per block (big-endian)
 0Ah    WORD    starting block (big-endian)
 0Ch    WORD    total blocks on volume (big-endian)
 0Eh    WORD    blocks available on volume (big-endian)
 10h    WORD    total directory slots (big-endian)
 12h    WORD    directory slots available (big-endian)
 14h    WORD    maximum directory entries actually used (big-endian)
 16h    BYTE    flag: volume hashed if nonzero
 17h    BYTE    flag: volume cached if nonzero
 18h    BYTE    flag: volume removable if nonzero
 19h    BYTE    flag: volume mounted if nonzero
 1Ah 16 BYTEs    NUL-padded volume name
----------21E4-------------------------------
INT 21 - Novell NetWare 4.0 - SET FILE ATTRIBUTES (FCB)
    AH = E4h
    CL = file attributes
        bit 0: read only
        1: hidden
        2: system
        7: shareable
    DX:DX -> FCB (see AH=0Fh)
Return: AL = error code
SeeAlso: AX=4301h
----------21E4-------------------------------
INT 21 - VIRUS - "Anarkia" - INSTALLATION CHECK
    AH = E4h
Return: AH = 04h if resident
SeeAlso: AH=E1h"VIRUS",AH=E7h"VIRUS"
----------21E400-----------------------------
INT 21 - DoubleDOS - INSTALLATION CHECK/PROGRAM STATUS
    AX = E400h
Return: AL = 00h if DoubleDOS not present
       = 01h if running in visible DoubleDOS partition
       = 02h if running in the invisible DoubleDOS partition
SeeAlso: AH=E5h"DoubleDOS",AX=F400h
----------21E400-----------------------------
INT 21 - OS/286, OS/386 - CHAIN TO REAL-MODE HANDLER
    AX = E400h
    ???
Return: ???
Note:    protected mode only???
----------21E402-----------------------------
INT 21 - OS/286, OS/386 - SET PROTECTED-MODE TASK GATE
    AX = E402h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=E403h
----------21E403-----------------------------
INT 21 - OS/286, OS/386 - REMOVE PROTECTED-MODE TASK GATE
    AX = E403h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=E402h
----------21E5-------------------------------
INT 21 - Novell NetWare 4.0 - UPDATE FILE SIZE (FCB)
    AH = E5h
    DS:DX -> FCB (see AH=0Fh)
Return: AL = error code
----------21E5-------------------------------
INT 21 - DoubleDOS - OTHER PROGRAM STATUS
    AH = E5h
Return: AL = 00h no program in other partition
       = 01h program in other partition is running
       = 02h program in other partition is suspended
SeeAlso: AX=E400h"DoubleDOS",AH=F5h"DoubleDOS"
----------21E500-----------------------------
INT 21 - OS/286, OS/386 - HEAP MANAGEMENT STRATEGY
    AX = E500h
    ???
Return: ???
SeeAlso: AX=E501h
----------21E501-----------------------------
INT 21 - OS/286, OS/386 - FORCE HEAP COMPACTION
    AX = E501h
    ???
Return: ???
SeeAlso: AX=E500h
----------21E6-------------------------------
INT 21 - Novell NetWare 4.0 - COPY FILE TO FILE (FCB)
    AH = E6h
    CX:DX = number of bytes to copy
    DS:SI -> source FCB
    ES:DI -> destination FCB
Return: AL = error code
----------21E6-------------------------------
INT 21 P - OS/286, OS/386 - ISSUE REAL PROCEDURE SIGNAL FROM PROTECTED MODE
    AH = E6h
    ???
Return: ???
SeeAlso: AH=E2h"OS/286"
----------21E7-------------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER DATE AND TIME
    AH = E7h
    DS:DX -> date/time buffer (see below)
Return: AL = error code
        00h successful
        FFh unsuccessful
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
      Alloy NTNX, and Banyan VINES
SeeAlso: AH=2Ah,AH=2Ch,AH=E3h/SF=CAh

Format of date/time buffer:
Offset    Size    Description
 00h    BYTE    year (80-99 = 1980-1999, 0-79 = 2000-2079)
 01h    BYTE    month (1=Jan)
 02h    BYTE    day
 03h    BYTE    hours
 04h    BYTE    minutes
 05h    BYTE    seconds
 06h    BYTE    day of week (0 = Sunday) (Novell and NTNX only)
----------21E7-------------------------------
INT 21 - OS/286, OS/386 - CREATE CODE SEGMENT
    AH = E7h
    ???
Return: ???
SeeAlso: AH=E8h"OS/286",AH=E9h"OS/286",AH=EAh"OS/286"
----------21E7-------------------------------
INT 21 - VIRUS - "Spyer"/"Kiev" - INSTALLATION CHECK
    AH = E7h
Return: AH = 78h if resident
SeeAlso: AH=E4h"VIRUS",AX=EC59h
----------21E8-------------------------------
INT 21 - Novell NetWare 4.6, Alloy NTNX - SET FCB RE-OPEN MODE
    AH = E8h
    DL = mode
        00h no automatic re-open
        01h auto re-open
Return: AL = error code
----------21E8-------------------------------
INT 21 - OS/286, OS/386 - SEGMENT CREATION
    AH = E8h
    AL = type
        00h data segment
        01h data window/alias
        02h real segment
        03h real window/alias
        06h shareable segment
    ???
Return: ???
SeeAlso: AH=E7h"OS/286",AH=E9h"OS/286"
----------21E8-------------------------------
INT 21 - DoubleDOS - SET/RESET KEYBOARD CONTROL FLAGS
    AH = E8h
    AL = 00h set flags for this program
       = 01h set flags for other program
    DX = keyboard control flags (bit set enables, cleared disables
        bit 0: menu
        bit 1: exchange
        bit 2: entire keyboard enable/disable
        bit 3: Ctrl-C
        bit 4: Ctrl-PrtSc
        bit 5: Alt/Erase
        bit 6: Ctrl-Break
        bit 7: Ctrl-NumLock
        bit 8: shift-PrtSc
        bit 9-13: undefined
        bit 14: cancel key (clear keyboard buffer)
        bit 15: suspend key
Return: DX = previous flags
Notes:    disabling Ctrl-PrtSc will allow the program to intercept the keystroke;
      disabling any of the other keystrokes disables them completely
    identical to AH=F8h
SeeAlso: AH=E1h"DoubleDOS",AH=E2h"DoubleDOS",AH=E3h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
----------21E9-------------------------------
INT 21 P - OS/286, OS/386 - CHANGE SEGMENTS
    AH = E9h
    AL = function
        01h change code segment parameters
        02h    change data segment parameters
        05h adjust segment limit
        06h change segment base address
    ???
Return: ???
SeeAlso: AH=E7h"OS/286",AH=E8h"OS/286",AH=EAh"OS/286",AH=EDh"OS/286"
SeeAlso: INT 31/AX=0007h,INT 31/AX=0008h
----------21E9-------------------------------
INT 21 - DoubleDOS - SET TIMESHARING PRIORITY
    AH = E9h
    AL = 00h visible program gets 70%, invisible gets 30% (default)
       = 01h visible program gets 50%, invisible gets 50%
       = 02h visible program gets 30%, invisible gets 70%
       = 03h Top program gets 70%, bottom program gets 30%
       = 04h Top program gets 30%, bottom program gets 70%
       = 05h get current priority
        Return: AL = priority setting
Note:    identical to AH=F9h
SeeAlso: AH=EAh"DoubleDOS",AH=EBh"DoubleDOS",AH=F9h"DoubleDOS"
----------21E900-----------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET DIRECTORY HANDLE
    AX = E900h
    DX = drive number to check (0 = A:, ..., 25 = Z:, 26 ... 31)
Return: AL = directory handle
    AH = flags (drive not mapped if none set)
        bit 0: permanent handle
        bit 1: temporary handle
        bit 7: mapped to local drive
Note:    this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E2h/SF=00h,AH=E2h/SF=01h,AH=E2h/SF=0Ah
----------21E905-----------------------------
INT 21 - Novell NetWare shell 3.01 - MAP A FAKE ROOT DIRECTORY
    AX = E905h
    BL = drive number (0=default, 1=A:, ...)
    DS:DX -> ASCIZ path for fake root (may include server name or be empty)
Return: CF set on error
        AL = error code (03h,0Fh,11h) (see AH=59h)
    CF clear if successful
Note:    if drive is not currently mapped, a drive mapping will be created
SeeAlso: AX=E906h
----------21E906-----------------------------
INT 21 - Novell NetWare shell 3.01 - DELETE FAKE ROOT DIRECTORY
    AX = E906h
    BL = drive number (0=default, 1=A:, ...)
Note:    drive remains mapped
SeeAlso: AX=E905h
----------21E907-----------------------------
INT 21 - Novell NetWare shell 3.01 - GET RELATIVE DRIVE DEPTH
    AX = E907h
    BL = drive number (0=default, 1=A:, ...)
Return: AL = number of directories below the fake root
        FFh if no fake root assigned
SeeAlso: AX=E905h
----------21E908BL00-------------------------
INT 21 - Novell NetWare shell 3.01 - SET SHOW DOTS
    AX = E908h
    BL = 00h    don't return '.' or '..' during directory scans
       = nonzero    directory scans will return '.' or '..' entries
Return: BL = previous show-dots setting
----------21EA-------------------------------
INT 21 - Novell NetWare 4.6, Alloy NTNX - RETURN SHELL VERSION
    AH = EAh
    AL = return version environment string
        00h        don't return string
        nonzero    return string in 40-byte buffer pointed to by ES:DI
        Return: buffer filled with three null-terminated entries:
            major operating system
            version
            hardware type
Return: AH = operating system (00h = MSDOS)
    AL = hardware type
        00h IBM PC
        01h Victor 9000
    BH = major shell version
    BL = minor shell version
    CH = (v3.01+) shell type
        00h conventional memory
        01h expanded memory
        02h extended memory
    CL = shell revision number
----------21EA-------------------------------
INT 21 - DoubleDOS - TURN OFF TASK SWITCHING
    AH = EAh
Return: task switching turned off
SeeAlso: AH=E9h"DoubleDOS",AH=EBh"DoubleDOS",AH=FAh"DoubleDOS"
SeeAlso: INT FA"DoubleDOS"
----------21EA-------------------------------
INT 21 - OS/286, OS/386 - ALLOCATE HUGE SEGMENT
    AH = EAh
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AH=E7h"OS/286",AH=E8h"OS/286",AH=E9h"OS/286"
----------21EB-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOG FILE
    AH = EBh
    DS:DX -> ASCIZ filename
    if function C6h lock mode 01h:
        AL = flags
        00h log file only
        01h lock as well as log file
            BP = lock timeout in timer ticks (1/18 second)
            0000h = don't wait if file already locked
Return: AL = error code
        00h successful
        96h no dynamic memory for file
        FEh timed out
        FFh failed
Desc:    add the location and size of the specified file to the log table and
      optionally lock the file
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=BCh"NetWare",AH=CAh,AH=D0h,AH=ECh"NetWare",AH=EDh"NetWare"
----------21EB-------------------------------
INT 21 - DoubleDOS - TURN ON TASK SWITCHING
    AH = EBh
Return: task switching turned on
SeeAlso: AH=E9h"DoubleDOS",AH=EAh"DoubleDOS",AH=FBh"DoubleDOS"
SeeAlso: INT FB"DoubleDOS"
----------21EB00-----------------------------
INT 21 - OS/386 VMM - GET A PAGE TABLE ENTRY BY LINEAR ADDRESS
    AX = EB00h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=EB02h,AX=EB04h,INT 31/AX=0506h
----------21EB02-----------------------------
INT 21 - OS/386 VMM - GET A PAGE TABLE ENTRY BY 16-BIT SEGMENT:OFFSET
    AX = EB02h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=EB00h,AX=EB04h
----------21EB03-----------------------------
INT 21 - OS/386 VMM - FREE MAPPED PAGES
    AX = EB03h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=EB05h,INT 31/AX=0801h
----------21EB04-----------------------------
INT 21 - OS/386 VMM - GET A PAGE TABLE ENTRY BY 32-BIT SEGMENT:OFFSET
    AX = EB04h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=EB00h,AX=EB02h
----------21EB05-----------------------------
INT 21 - OS/386 VMM - MAP PAGES
    AX = EB05h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=EB03h,INT 31/AX=0800h
----------21EB06-----------------------------
INT 21 - OS/386 VMM - LOCK PAGES IN MEMORY
    AX = EB06h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=EB07h,INT 31/AX=0600h
----------21EB07-----------------------------
INT 21 - OS/386 VMM - UNLOCK MEMORY PAGES
    AX = EB07h
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AX=EB06h,INT 31/AX=0601h
----------21EC-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE FILE
    AH = ECh
    DS:DX -> ASCIZ filename
Return: AL = status
        00h successful
        FFh file not found
Desc:    unlock the specified file but retain it in the log table
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=CDh,AH=EBh"NetWare",AH=EDh"NetWare"
----------21EC-------------------------------
INT 21 - DoubleDOS - GET VIRTUAL SCREEN ADDRESS
    AH = ECh
Return: ES = segment of virtual screen
Notes:    screen address can change if task-switching is on!!
    identical to AH=FCh
SeeAlso: INT 10/AH=FEh,AH=FCh"DoubleDOS",INT FC"DoubleDOS"
----------21EC-------------------------------
INT 21 - OS/286, OS/386 - BLOCK TRANSFER
    AH = ECh
    ???
Return: ???
----------21EC59-----------------------------
INT 21 - VIRUS - "Terror" - INSTALLATION CHECK
    AX = EC59h
Return: BP = EC59h if resident
SeeAlso: AH=E7h"VIRUS",AH=EEh"VIRUS"
----------21ED-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR FILE
    AH = EDh
    DS:DX -> ASCIZ filename
Return: AL = status
        00h successful
        FFh no files found
Desc:    unlock the file and remove it from the log table
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=CBh"NetWare",AH=CEh,AH=CFh,AH=EBh"NetWare",AH=ECh"NetWare"
----------21ED-------------------------------
INT 21 - OS/286, OS/386 - GET SEGMENT OR WINDOW DESCRIPTOR
    AH = EDh
    ???
Return: ???
Note:    protected mode only???
SeeAlso: AH=E9h"OS/286"
----------21EE-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET PHYSICAL STATION ADDRESS
    AH = EEh
Return: CX:BX:AX = six-byte physical address
Note:    this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
      Alloy NTNX
SeeAlso: AH=E3h/SF=13h
----------21EE-------------------------------
INT 21 - DoubleDOS - GIVE AWAY TIME TO OTHER TASKS
    AH = EEh
    AL = number of 55ms time slices to give away
Return: returns after giving away time slices
SeeAlso: AH=FEh"DoubleDOS",INT FE"DoubleDOS"
----------21EE-------------------------------
INT 21 - VIRUS - "Jerusalem-G", "Pregnant" - INSTALLATION CHECK
    AH = EEh
Return: AX = 0300h if "Jerusalem-G" resident
    AL = 05h if "Pregnant" resident
SeeAlso: AH=DDh"VIRUS",AX=EC59h,AH=F0h"VIRUS"
----------21EF00-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DRIVE HANDLE TABLE
    AX = EF00h
Return: ES:SI -> network shell's 32-byte drive handle table
    AX = 0000h
Notes:    this function is supported by Advanced NetWare 1.0+
    each byte in the drive handle table contains the directory handle for
      the corresponding drive, or 00h if not mapped to a directory
SeeAlso: AX=EF01h,AX=EF02h,AX=EF03h,AX=EF04h
----------21EF01-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DRIVE FLAG TABLE
    AX = EF01h
Return: ES:SI -> network shell's 32-byte drive flag table (see below)
    AX = 0000h
Notes:    this function is supported by Advanced NetWare 1.0+
    each byte in the drive flag table corresponds to a drive
SeeAlso: AX=EF00h,AX=EF02h,AX=EF03h

Values in drive flag table:
 00h    drive is not mapped
 01h    permanent network drive
 02h    temporary network drive
 80h    mapped to local drive
 81h    local drive used as permanent network drive
 82h    local drive used as temporary network drive
----------21EF02-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DRIVE CONNECTION ID
    AX = EF02h
Return: ES:SI -> network shell's 32-byte drive conection ID table
    AX = 0000h
Notes:    this function is supported by Advanced NetWare 1.0+
    each byte in the connection ID table corresponds to a drive and
      contains either the connection ID (1-8) of the server for that drive
      or 00h if the drive is not mapped to a file server
SeeAlso: AX=EF01h,AX=EF03h,AX=F002h
----------21EF03-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET CONNECTION ID
    AX = EF03h
Return: ES:SI -> network shell's connection ID table (see below)
    AX = 0000h
Note:    this function is supported by Advanced NetWare 1.0+
SeeAlso: AX=EF00h,AX=EF02h,AX=EF04h,AX=F002h

Format of connection ID table [one entry of eight-element array]:
Offset    Size    Description
 00h    BYTE    in use flag
        E0h AES temporary
        F8h IPX in critical section
        FAh processing
        FBh holding
        FCh AES waiting
        FDh waiting
        FEh receiving
        FFh sending
 01h    BYTE    order number assigned to server (1-8)
 02h    DWORD    file server's network address (big-endian)
 06h  6 BYTEs    file server's node address (big-endian)
 0Ch    WORD    socket number (big-endian)
 0Eh    WORD    base receive timeout in clock ticks (big-endian)
 10h  6 BYTEs    preferred routing node (big-endian)
 16h    BYTE    packet sequence number
 17h    BYTE    connection number (FFh = no connection)
 18h    BYTE    connection status (00h if active)
 19h    WORD    maximum receive timeout in clock ticks (big-endian)
 1Bh  5 BYTEs    reserved
----------21EF04-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET FILE SERVER NAME
    AX = EF04h
Return: ES:SI -> network shell's file server name table (see below)
    AX = 0000h
Notes:    this function is supported by Advanced NetWare 1.0+
    the name table consists of eight 48-byte entries, each consisting of
      an ASCIZ server name for the corresponding entry in the connection
      ID table
SeeAlso: AX=EF03h
----------21F0-------------------------------
INT 21 - DoubleDOS - MENU CONTROL
    AH = F0h
    AL = subfunction
        01h exchange tasks
        73h resume invisible job if suspended
        74h kill other job
        75h suspend invisible job
Note:    identical to AH=E0h
SeeAlso: AH=E0h"DoubleDOS"
----------21F0-------------------------------
INT 21 - VIRUS - "Frere Jacques" - INSTALLATION CHECK
    AH = F0h
Return: AX = 0300h if resident
SeeAlso: AH=EEh"VIRUS",AH=F1h"VIRUS"
----------21F000-----------------------------
INT 21 - Novell NetWare - WORKSTATION - SET PREFERRED CONNECTION ID
    AX = F000h
    DL = connection ID of prefered file server (1-8) or 00h for none
Notes:    this function is supported by Advanced NetWare 1.0+
    the preferred connection ID is set to 00h by the shell on EOJ
SeeAlso: AH=D6h,AX=EF03h,AX=F001h,AX=F002h,AX=F005h
----------21F001-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET PREFERRED CONNECTION ID
    AX = F001h
Return: AL = connection ID of preferred file server (1-8), 00h if not set
Notes:    this function is supported by Advanced NetWare 1.0+
    the preferred connection ID is set to 00h by the shell on EOJ
SeeAlso: AH=D6h,AX=EF03h,AX=F000h,AX=F002h,AX=F005h
----------21F002-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DEFAULT CONNECTION ID
    AX = F002h
Return: AL = connection ID of current default file server (1-8) (see AX=EF03h)
Note:    this function is supported by Advanced NetWare 1.0+
SeeAlso: AX=EF03h,AX=F000h,AX=F004h
----------21F003-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET LPT CAPTURE STATUS
    AX = F003h
Return: AH = status
        00h not active
        FFh active
        AL = connection ID (01h-08h)
Note:    this function is supported by Advanced NetWare 1.0+
SeeAlso: AX=B800h,AX=B804h,AH=DFh/DL=00h,AH=DFh/DL=04h
----------21F004-----------------------------
INT 21 - Novell NetWare - WORKSTATION - SET PRIMARY CONNECTION ID
    AX = F004h
    DL = connection ID of primary file server (1-8) or 00h for none
Note:    this function is supported by Advanced NetWare 2.0+
SeeAlso: AH=D6h,AX=EF03h,AX=F000h,AX=F002h,AX=F005h
----------21F005-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET PRIMARY CONNECTION ID
    AX = F005h
Return: AL = connection ID of primary file server (1-8), 00h if not set
Notes:    this function is supported by Advanced NetWare 2.0+
    by default, the primary file server is the one from which the login
      script executed; it is set to 00h if the workstation is not logged in
      and when it detaches from its primary file server
SeeAlso: AH=D6h,AX=EF03h,AX=F000h,AX=F002h,AX=F004h
----------21F1-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - FILE SERVER CONNECTION
    AH = F1h
    AL = subfunction
        00h attach to file server
        DL = preferred file server (01h-08h)
        01h detach from file server
        DL = connection ID
        02h logout from file server
        DL = connection ID
Return: AL = status
        00h successful
        F8h already attached to server
        F9h connection table full
        FAh no more server slots
        FCh unknown file server
        FEh server bindery locked
        FFh no response from server, or connection does not exist
Note:    these functions are supported by Advanced NetWare 1.0+
SeeAlso: AH=D7h"NetWare",AH=E3h/SF=14h
----------21F1-------------------------------
INT 21 - DoubleDOS - CLEAR KEYBOARD BUFFER FOR CURRENT JOB
    AH = F1h
SeeAlso: AH=E1h"DoubleDOS",AH=F2h"DoubleDOS",AH=F3h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
----------21F1-------------------------------
INT 21 - VIRUS - "F1-337" - ???
    AH = F1h
    ???
Return: ???
SeeAlso: AH=F0h"VIRUS",AX=F2AAh
----------21F2-------------------------------
INT 21 - Novell NetWare v3.01+ shell interface - MULTIPLEXOR
    AH = F2h
    AL = function
        15h broadcast services (see AH=E1h"NetWare")
        16h file/directory services (see AH=E2h"NetWare")
        17h connection control (see AH=E3h"NetWare")
    CX = length of request buffer in bytes
    DX = length of reply buffer in bytes
    DS:SI -> request buffer (contents vary by function)
    ES:DI -> reply buffer (contents vary by function)
Return: AL = status
    reply buffer filled as appropriate for function
Note:    this is a multiplexor providing a "raw" interface to the underlying
      Netware Core Protocol.  Many functions which were accessed via a
      separate AH function in older versions can also be accessed here
      (the function number in AL is added to CCh to get the old function
      number which is desired), but some NetWare 3.x calls appear to be
      available only here.
SeeAlso: AX=F244h
----------21F2-------------------------------
INT 21 - DoubleDOS - SEND CHARACTER TO KEYBOARD BUFFER OF OTHER JOB
    AH = F2h
    AL = character
Return: AL = 00h successful
         01h buffer full (128 characters)
SeeAlso: AH=E2h"DoubleDOS",AH=F1h"DoubleDOS",AH=F3h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
----------21F244-----------------------------
INT 21 - Novell NetWare - FILE SERVICES - ERASE FILES
    AX = F244h
    DS:SI -> request buffer (see below)
    ES:DI -> reply buffer (ignored???)
Return: AL = status
        00h successful
        98h nonexistent volume
        9Bh invaid directory handle
        9Ch invalid path
        FFh no files found
Note:    this function only marks the file for deletion; use AH=E2h/SF=CEh to
      actually delete all marked files
SeeAlso: AH=13h,AH=41h,AH=E2h/SF=0Bh,AH=E3h/SF=CEh

Format of request buffer:
Offset    Size    Description
 00h    BYTE    directory handle
 01h    BYTE    search attributes (see AX=4301h)
 02h    BYTE    length of filespec
 03h  N BYTEs    ASCIZ filespec (may include wildcards)
----------21F2AA-----------------------------
INT 21 - VIRUS - "PcVrsDs" - INSTALLATION CHECK
    AX = F2AAh
Return: AH = AAh if resident
SeeAlso: AH=F1h"VIRUS",AH=F3h"VIRUS"
----------21F3-------------------------------
INT 21 - Novell NetWare - FILE SERVICES - FILE SERVER FILE COPY
    AH = F3h
    ES:DI -> request buffer (see below)
Return: AL = status/error code
    CX:DX = number of bytes copied
Notes:    this function is supported by Advanced NetWare 2.0+
    both source and destination must be on the same file server
SeeAlso: AH=3Ch,AH=3Fh

Format of request buffer:
Offset    Size    Description
 00h    WORD    source file handle (as returned by AH=3Ch or AH=3Dh)
 02h    WORD    destination file handle
 04h    DWORD    starting offset in source
 08h    DWORD    starting offset in destination
 0Ch    DWORD    number of bytes to copy
----------21F3-------------------------------
INT 21 - DoubleDOS - ADD CHARACTER TO KEYBOARD BUFFER OF CURRENT JOB
    AH = F3h
    AL = character
Return: AL = 00h successful
         01h buffer full (128 characters)
SeeAlso: AH=E3h"DoubleDOS",AH=F1h"DoubleDOS",AH=F2h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
----------21F3-------------------------------
INT 21 - VIRUS - "Carfield" - INSTALLATION CHECK
    AH = F3h
Return: AX = 0400h if resident
SeeAlso: AH=D5h"Carfield",AX=F2AAh,AH=F7h"VIRUS"
----------21F400-----------------------------
INT 21 - DoubleDOS - INSTALLATION CHECK/PROGRAM STATUS
    AX = F400h
Return: AL = 00h if DoubleDOS not present
       = 01h if running in visible DoubleDOS partition
       = 02h if running in the invisible DoubleDOS partition
SeeAlso: AX=E400h,AH=F5h"DoubleDOS"
----------21F5-------------------------------
INT 21 - DoubleDOS - OTHER PROGRAM STATUS
    AH = F5h
Return: AL = 00h no program in other partition
       = 01h program in other partition is running
       = 02h program in other partition is suspended
SeeAlso: AH=E5h"DoubleDOS",AX=F400h"DoubleDOS"
----------21F7-------------------------------
INT 21 - VIRUS - "GP1" - INSTALLATION CHECK
    AH = F7h
Return: AX = 0300h if resident
SeeAlso: AH=F0h"VIRUS",AH=FBh"VIRUS"
----------21F8-------------------------------
INT 21 - DOS v2.11 - SET OEM INT 21 HANDLER
    AH = F8h
    DS:DX -> OEM INT 21 handler for functions F9h to FFh
         FFFFh:FFFFh disables OEM handler
Notes:    this function is supported by Toshiba T1000 ROM MSDOS 2.11
    calls to AH=F9h through AH=FFH will return AL=00h if no handler set
    handler is called with all registers exactly as set by caller, and
      should exit with IRET
SeeAlso: AH=F9h"OEM"
----------21F8-------------------------------
INT 21 - DoubleDOS - SET/RESET KEYBOARD CONTROL FLAGS
    AH = F8h
    AL = 00h set flags for this program
       = 01h set flags for other program
    DX = keyboard control flags (bit set enables, cleared disables)
        bit 0: menu
        bit 1: exchange
        bit 2: entire keyboard enable/disable
        bit 3: Ctrl-C
        bit 4: Ctrl-PrtSc
        bit 5: Alt/Erase
        bit 6: Ctrl-Break
        bit 7: Ctrl-NumLock
        bit 8: shift-PrtSc
        bit 9-13: undefined
        bit 14: cancel key (clear keyboard buffer)
        bit 15: suspend key
Return: DX = previous flags
Notes:    disabling Ctrl-PrtSc will allow the program to intercept the keystroke;
      disabling any of the other keystrokes disables them completely
    identical to AH=E8h
SeeAlso: AH=E8h"DoubleDOS",AH=F1h"DoubleDOS",AH=F2h"DoubleDOS"
SeeAlso: AH=F3h"DoubleDOS"
----------21F9-------------------------------
INT 21 - DOS v2.11 - OEM FUNCTION
    AH = F9h
SeeAlso: AH=F8h"OEM",AH=FAh"OEM"
----------21F9-------------------------------
INT 21 - DoubleDOS - SET TIMESHARING PRIORITY
    AH = F9h
    AL = 00h visible program gets 70%, invisible gets 30% (default)
       = 01h visible program gets 50%, invisible gets 50%
       = 02h visible program gets 30%, invisible gets 70%
       = 03h Top program gets 70%, bottom program gets 30%
       = 04h Top program gets 30%, bottom program gets 70%
       = 05h get current priority
        Return: AL = priority setting
Note:    identical to AH=E9h
SeeAlso: AH=E9h"DoubleDOS",AH=FAh"DoubleDOS",AH=FBh"DoubleDOS"
----------21FA-------------------------------
INT 21 - DOS v2.11 - OEM FUNCTION
    AH = FAh
SeeAlso: AH=F8h"OEM",AH=F9h"OEM",AH=FBh"OEM"
----------21FA-------------------------------
INT 21 - DoubleDOS - TURN OFF TASK SWITCHING
    AH = FAh
Return: task switching turned off
SeeAlso: AH=EAh"DoubleDOS",AH=F9h"DoubleDOS",AH=FBh"DoubleDOS"
SeeAlso: INT FA"DoubleDOS"
----------21FA--DX5945-----------------------
INT 21 U - PC Tools v7+ VDEFEND, VSAFE, VWATCH - API
    AH = FAh
    DX = 5945h
    AL = function (00h-02h for VDEFEND, 00h-07h for VSAFE and VWATCH)
Return: varies by function
Note:    this API is identical to the API on INT 13/AH=FAh and INT 16/AH=FAh,
      so it is listed in its entirety only under INT 16/AX=FA00h and
      following
SeeAlso: INT 13/AX=FA00h,INT 16/AX=FA00h
----------21FB-------------------------------
INT 21 - DOS v2.11 - OEM FUNCTION
    AH = FBh
SeeAlso: AH=F8h"OEM",AH=FAh"OEM",AH=FCh"OEM"
----------21FB-------------------------------
INT 21 - DoubleDOS - TURN ON TASK SWITCHING
    AH = FBh
Return: task switching turned on
SeeAlso: AH=EBh"DoubleDOS",AH=F9h"DoubleDOS",AH=FAh"DoubleDOS"
SeeAlso: INT FB"DoubleDOS"
----------21FB-------------------------------
INT 21 - VIRUS - "Cinderella" - INSTALLATION CHECK
    AH = FBh
Return: AH = 00h if resident
SeeAlso: AH=F7h"VIRUS",AX=FB0Ah
----------21FB0A-----------------------------
INT 21 - VIRUS - "dBASE" - INSTALLATION CHECK
    AX = FB0Ah
Return: AX = 0AFBh if resident
SeeAlso: AH=FBh"VIRUS",AH=FCh"VIRUS"
----------21FC-------------------------------
INT 21 - DOS v2.11 - OEM FUNCTION
    AH = FCh
SeeAlso: AH=F8h"OEM",AH=FBh"OEM",AH=FDh"OEM"
----------21FC-------------------------------
INT 21 - DoubleDOS - GET VIRTUAL SCREEN ADDRESS
    AH = FCh
Return: ES = segment of virtual screen
Notes:    screen address can change if task-switching is on!!
    identical to AH=ECh
SeeAlso: AH=ECh"DoubleDOS",INT FC"DoubleDOS"
----------21FC-------------------------------
INT 21 - VIRUS - "Troi" - INSTALLATION CHECK
    AH = FCh
Return: AL = A5h if resident
SeeAlso: AH=FB0Ah"VIRUS",AH=FDh"VIRUS"
----------21FD-------------------------------
INT 21 - DOS v2.11 - OEM FUNCTION
    AH = FDh
SeeAlso: AH=F8h"OEM",AH=FCh"OEM",AH=FEh"DOS"
----------21FD-------------------------------
INT 21 - VIRUS - "Border" - INSTALLATION CHECK
    AH = FDh
Return: AH = 13h if resident
SeeAlso: AH=FCh"VIRUS",AH=FEh"VIRUS"
----------21FE-------------------------------
INT 21 - DOS v2.11 - OEM FUNCTION
    AH = FEh
SeeAlso: AH=F8h"OEM",AH=FDh"OEM",AH=FFh"OEM"
----------21FE-------------------------------
INT 21 - DoubleDOS - GIVE AWAY TIME TO OTHER TASKS
    AH = FEh
    AL = number of 55ms time slices to give away
Return: returns after giving away time slices
SeeAlso: AH=EEh"DoubleDOS",INT FE"DoubleDOS"
----------21FE-------------------------------
INT 21 - VIRUS - "483" - INSTALLATION CHECK
    AH = FEh
Return: AH = 00h if resident
SeeAlso: AH=FDh"VIRUS",AX=FE01h
----------21FE01-----------------------------
INT 21 - VIRUS - "Flip" - INSTALLATION CHECK
    AX = FE01h
Return: AX = 01FEh if resident
SeeAlso: AH=FEh"VIRUS",AX=FE02h
----------21FE02-----------------------------
INT 21 - VIRUS - "2468"/"Tequila" - INSTALLATION CHECK
    AX = FE02h
Return: AX = 01FDh if resident
SeeAlso: AX=FE01h,AX=FEDCh"VIRUS"
----------21FEDC-----------------------------
INT 21 - PCMag PCMANAGE/DCOMPRES - INSTALLATION CHECK
    AX = FEDCh
Return: AX = CDEFh if installed
SeeAlso: AH=DCh
----------21FEDC-----------------------------
INT 21 - VIRUS - "Black Monday" - INSTALLATION CHECK
    AX = FEDCh
Return: AL = DCh if resident
SeeAlso: AX=FE02h,AH=FFh"VIRUS"
----------21FF-------------------------------
INT 21 - DOS v2.11 - OEM FUNCTION
    AH = FFh
SeeAlso: AH=F8h"OEM",AH=FEh"OEM"
----------21FF-------------------------------
INT 21 - CED (Command EDitor) - INSTALLABLE COMMANDS
    AH = FFH
    AL = subfunction
        00h add installable command
           BL = mode - bit 0 = 1 callable from DOS prompt
               bit 1 = 1 callable from application
           DS:SI -> CR-terminated command name
           ES:DI -> FAR routine entry point
        01h remove installable command
           DS:SI -> CR-terminated command name
        02h reserved, may be used to test for CED installation
Return: CF clear if successful
    CF set on error
        AX = 01h invalid function
         02h command not found (subfunction 01h only)
         08h insufficient memory (subfunction 00h only)
         0Eh bad data (subfunction 00h only)
    AH = FFh if CED not installed
Note:    CED is a shareware DOS command-line enhancer by Christopher J. Dunford
SeeAlso: AX=0A00h
----------21FF-------------------------------
INT 21 - DJ GO32.EXE 80386+ DOS extender - DOS EXTENSIONS
    AH = FFh
    AL = function
        01h create file
        02h open file
        03h get file statistics
        04h get time of day
        05h set time of day
        06h stat
        07h system
SeeAlso: INT 10/AH=FFh"GO32"
----------21FF-------------------------------
INT 21 - DOSED.COM - INSTALLATION CHECK
    AH = FFh
    DS:SI -> "DOSED"
    ES = 0000h
Return: ES:DI -> "DOSED" if installed
Note:    DOSED is a free DOS commandline editor/history buffer by Sverre H.
      Huseby
----------21FF-------------------------------
INT 21 - Topware Network Operating System - ???
    AH = FFh
    ???
Return: ???
SeeAlso: INT 2F/AX=FF00h
----------21FF-------------------------------
INT 21 - VIRUS - "Sunday", "Tumen 0.5", "Hero" - INSTALLATION CHECK
    AH = FFh
Return: AH = 00h if "Tumen 0.5" or "Hero" resident
    AX = 0400h if "Sunday" resident
SeeAlso: AX=FEDCh"VIRUS",AX=FF0Fh
----------21FF-------------------------------
INT 21 UP - Rational Systems DOS/4GW - API
    AH = FFh
    DH = function (00h-17h) (see also separate entries below)
    DL = subfunction or argument
Return: CF clear if valid function number
        AX = status???
    CF set if invalid function
SeeAlso: INT 15/AX=BFDCh
----------21FF--DH02-------------------------
INT 21 UP - Rational Systems DOS/4GW - SET ???
    AH = FFh
    DH = 02h
    DL = ???
Return: CF clear
----------21FF--DH05-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 05h
    BX = ???
Return: ???
----------21FF--DH06-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 06h
    BX = ???
Return: ???
----------21FF--DH07-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 07h
    BX = ???
Return: ???
----------21FF--DH08-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 08h
    BX = ???
    CX = ???
    ES = ???
Return: ???
----------21FF--DH09-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET ???
    AH = FFh
    DH = 09h
Return: ES:BX -> ???
----------21FF--DH0A-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 0Ah
    AL = ???
    BX = ???
    CX = ???
Return: ES = ??? or 0000h
----------21FF--DH0B-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 0Bh
    AL = ???
    BX = ???
    CX = ???
Return: ???
----------21FF--DH0C-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET/SET ???
    AH = FFh
    DH = 0Ch
    DL = ??? (00h or 01h)
Return: CF clear if successful
        AL = previous value of ???
    CF set on error (DL out of range)
        AX = FFFFh
----------21FF--DH0D-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 0Dh
    ???
Return: ???
----------21FF--DH0E-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 0Eh
Return: DX:AX -> XBRK structure (see INT 15/AX=BF02h)
    BX = ???
    CX = ???
SeeAlso: INT 15/AX=BF02h
----------21FF--DH0F-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 0Fh
    ???
Return: ???
----------21FF--DH10-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 10h
    AL = ???
    BX = ???
    CX = ???
    DI = ???
    SI = ???
Return: ???
Note:    among other things, frees two memory blocks via INT 21/AH=49h
----------21FF--DH11-------------------------
INT 21 UP - Rational Systems DOS/4GW - NOP
    AH = FFh
    DH = 11h
----------21FF--DH12-------------------------
INT 21 UP - Rational Systems DOS/4GW - EXCHANGE ??? POINTERS
    AH = FFh
    DH = 12h
    DS:SI -> new ???
    ES:DI -> new ???
Return: DS:SI -> previous ???
    ES:DI -> previous ???
----------21FF--DH13-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 13h
    AL = ???
    ES = ???
Return: ???
----------21FF--DH14-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFh
    DH = 14h
    BX = ???
    CX = ???
Return: CF clear
        AX = ???
        DX = ???
----------21FF--DH15-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET ??? FUNCTIONS
    AH = FFh
    DH = 15h
Return: CF clear
        DX:AX -> FAR function for ???
        CX:BX -> FAR function for ???
        SI:DI -> FAR function for ???
----------21FF--DH16-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET ???
    AH = FFh
    DH = 16h
Return: AX = ???
----------21FF--DH17-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
    AH = FFH
    DH = 17h
    AL = ???
    DL = ???
Return: ???
----------21FF00DX0078-----------------------
INT 21 - Rational Systems DOS/4G - INSTALLATION CHECK
    AX = FF00h
    DX = 0078h
Return: AL <> 00h if installed
        GS = segment of kernel if nonzero
SeeAlso: INT 15/AX=BF02h
----------21FF0F-----------------------------
INT 21 - FLU_SHOT+ v1.83 - INSTALLATION CHECK
    AX = FF0Fh
Return: AX = 0101h if resident
Notes:    FLU_SHOT+ is an antivirus/antitrojan program by Ross M. Greenberg and
      Software Concepts Design
    the "PSQR/1720" virus calls this function to determine whether
      FLU_SHOT+ is present
SeeAlso: AH=FFh"VIRUS",AX=FF10h
----------21FF10-----------------------------
INT 21 - VIRUS - "Twins" - INSTALLATION CHECK
    AX = FF10h
Return: AL = 07h if resident
SeeAlso: AX=FF0Fh,AX=FFFEh
----------21FFFE-----------------------------
INT 21 - VIRUS - "08/15"/"Many Fingers" - INSTALLATION CHECK
    AX = FFFEh
Return: AX = 0815h if resident
SeeAlso: AX=FF10h,AX=FFFFh
----------21FFFF-----------------------------
INT 21 - VIRUS - "Ontario", "Year 1992"/"B1M92" - INSTALLATION CHECK
    AX = FFFFh
Return: AX = 0000h if "Ontario" resident
    AX = 1992h if "Year 1992"/"B1M92" resident
SeeAlso: AX=FF0Fh,AX=FFFFh/CX=0000h,INT 6B"VIRUS"
----------21FFFFCX0000-----------------------
INT 21 - VIRUS - "Revenge" - INSTALLATION CHECK
    AX = FFFFh
    CX = 0000h
Return: CX = 0006h if resident
SeeAlso: AX=FFFFh,INT 6B"VIRUS"
----------22---------------------------------
INT 22 - DOS 1+ - PROGRAM TERMINATION ADDRESS
Desc:    this vector specifies the address of the routine which is to be given
      control after a program is terminated; it should never be called
      directly, since it does not point at an interrupt handler
Notes:    this vector is restored from the DWORD at offset 0Ah in the PSP during
      termination, and then a FAR JMP is performed to the address in INT 22
    normally points at the instruction immediately following INT 21/AH=4Bh
      call which loaded the current program
SeeAlso: INT 20,INT 21/AH=00h,INT 21/AH=31h,INT 21/AH=4Ch
---------------------------------------------
INT 22 - COMTROL HOSTESS i/ISA DEBUGGER - CHANGE FIRMWARE DEBUGGING PORT
    AL = new firmware debugging port
Return: ???
SeeAlso: INT 21"COMTROL HOSTESS",INT 23"COMTROL HOSTESS"
----------23---------------------------------
INT 23 - DOS 1+ - CONTROL-C/CONTROL-BREAK HANDLER
---DOS 1.x---
Return: AH = 00h abort program
    if all registers preserved, restart DOS call
---DOS 2+---
    CF clear
Return: all registers preserved
    return via RETF or RETF 2 with CF set
        DOS will abort program with errorlevel 0
    else (RETF/RETF 2 with CF clear or IRET)
        interrupted DOS call is restarted
Notes:    this interrupt is invoked whenever DOS detects a ^C or ^Break; it
      should never be called directly
    MSDOS 1.25 also invokes INT 23 on a divide overflow (INT 00)
    DOS remembers the stack pointer before calling INT 23, and if it is
      not the same on return, pops and discards the top word; this is what
      permits a return with RETF as well as IRET or RETF 2
    any DOS call may safely be made within the INT 23 handler, although
      the handler must to check for a recursive invocation if it does
      call DOS
SeeAlso: INT 1B
---------------------------------------------
INT 23 - COMTROL HOSTESS i/ISA DEBUGGER - GET CONFIGURATION INFORMATION
    AL = query type
        00h get old config map
        Return: AX = old config map
        01h get dual-ported RAM map
        Return: BX:AX = dual-ported RAM map
        02h get SCC port map
        Return: BX:AX = SCC port map
SeeAlso: INT 22"COMTROL HOSTESS",INT 26"COMTROL HOSTESS"
----------24---------------------------------
INT 24 - DOS 1+ - CRITICAL ERROR HANDLER
Note:    invoked when a critical (usually hardware) error is encountered; should
      never be called directly
SeeAlso: INT 21/AH=95h

Critical error handler is invoked with:
    AH = type and processing flags
        bit 7 clear = disk I/O error
          set    = -- if block device, bad FAT image in memory
              -- if char device, error code in DI
        bit 6  unused
        bit 5 = 1 if Ignore allowed, 0 if not (DOS 3+)
        bit 4 = 1 if Retry allowed, 0 if not (DOS 3+)
        bit 3 = 1 if Fail allowed, 0 if not (DOS 3+)
        bit 2 \ disk area of error    00 = DOS area  01 = FAT
        bit 1 /            10 = root dir  11 = data area
        bit 0 = 1 if write, 0 if read
    AL = drive number if AH bit 7 clear
    BP:SI -> device driver header (BP:[SI+4] bit 15 set if char device)
    DI low byte contains error code if AH bit 7 set
       00h write-protection violation attempted
       01h unknown unit for driver
       02h drive not ready
       03h unknown command given to driver
       04h data error (bad CRC)
       05h bad device driver request structure length
       06h seek error
       07h unknown media type
       08h sector not found
       09h printer out of paper
       0Ah write fault
       0Bh read fault
       0Ch general failure
       0Dh (DOS 3+) sharing violation
       0Eh (DOS 3+) lock violation
       0Fh invalid disk change
       10h (DOS 3+) FCB unavailable
       11h (DOS 3+) sharing buffer overflow
       12h (DOS 4+) code page mismatch
       13h (DOS 4+) out of input
       14h (DOS 4+) insufficient disk space
    STACK:    DWORD    return address for INT 24 call
        WORD    flags pushed by INT 24
        WORD    original AX on entry to INT 21
        WORD    BX
        WORD    CX
        WORD    DX
        WORD    SI
        WORD    DI
        WORD    BP
        WORD    DS
        WORD    ES
        DWORD    return address for INT 21 call
        WORD    flags pushed by INT 21
Handler must return:
    AL = action code
        00h ignore error and continue processing request
        01h retry operation
        02h terminate program through the equivalent of INT 21/AH=4Ch
            (INT 20h for DOS 1.x)
        03h fail system call in progress
    SS,SP,DS,ES,BX,CX,DX preserved
Notes:    the only DOS calls the handler may make are INT 21/AH=01h-0Ch,30h,59h
    if the handler returns to the application by popping the stack, DOS
      will be in an unstable state until the first call with AH > 0Ch
    for DOS 3.1+, IGNORE (AL=00h) is turned into FAIL (AL=03h) on network
      critical errors
    if IGNORE specified but not allowed, it is turned into FAIL
    if RETRY specified but not allowed, it is turned into FAIL
    if FAIL specified but not allowed, it is turned into ABORT
    (DOS 3+) if a critical error occurs inside the critical error handler,
      the DOS call is automatically failed
----------25---------------------------------
INT 25 - DOS 1+ - ABSOLUTE DISK READ (except partitions > 32M)
    AL = drive number (00h = A:, 01h = B:, etc)
    CX = number of sectors to read
    DX = starting logical sector number (0000h - highest sector on drive)
    DS:BX -> buffer for data
Return: CF clear if successful
    CF set on error
        AH = status
         80h device failed to respond (timeout)
         40h seek operation failed
         20h controller failed
         10h data error (bad CRC)
         08h DMA failure
         04h requested sector not found
         03h write-protected disk (INT 26 only)
         02h bad address mark
         01h bad command
        AL = error code (same as passed to INT 24 in DI)
    may destroy all other registers except segment registers
Notes:    original flags are left on stack, and must be popped by caller
    this call bypasses the DOS filesystem
BUG:    DOS 3.1 through 3.3 set the word at ES:[BP+1Eh] to FFFFh if AL is an
    invalid drive number
SeeAlso: INT 13/AH=02h,INT 26
----------25---------------------------------
INT 25 - DOS 3.31+ - ABSOLUTE DISK READ (>32M hard-disk partition)
    AL = drive number (0=A, 1=B, etc)
    CX = FFFFh
    DS:BX -> disk read packet (see below)
Return: same as above
Notes:    partition is potentially >32M (and requires this form of the call) if
      bit 1 of device attribute word in device driver is set
    original flags are left on stack, and must be removed by caller
    this call bypasses the DOS filesystem
SeeAlso: INT 13/AH=02h,INT 26

Format of disk read packet:
Offset    Size    Description
 00h    DWORD    sector number
 04h    WORD    number of sectors to read
 06h    DWORD    transfer address
----------25CDCD-----------------------------
INT 25 - Stacker - GET DEVICE DRIVER ADDRESS
    AX = CDCDh
    DS:BX -> buffer for address (see below)
    CX = 0001h
    DX = 0000h
Return: AX = CDCDh if Stacker installed
        DS:BX buffer filled

Format of driver address buffer:
Offset    Size    Description
 00h    WORD    signature CDCDh
 02h    WORD    ??? 0001h
 04h    DWORD    pointer to start of Stacker device driver

Format of device driver:
Offset    Size    Description
 00h    WORD    signature A55Ah
 02h    WORD    Stacker version * 64h
 04h    WORD    offset of volume-specific information offset table
        (list of WORDs, one per drive, containing offsets to various
        information)
 06h 56 BYTEs    n/a
 3Eh    BYTE    volume number, set after INT 21/AX=4404h
        (use to index into volume-specific info offset table)
 3Fh 19 BYTEs    n/a
 52h  4 BYTEs    ASCII string "SWAP"
 56h 26 BYTEs    drive mapping table (one byte for each drive A: through Z:)

Format of Stacker boot record:
Offset    Size    Description
1F0h  8 BYTEs    Stacker signature (first byte is CDh)
1F8h    DWORD    pointer to start of Stacker device driver
1FCh    WORD    Stacker volume number
1FEh    WORD    ???
----------25--FFSI4358-----------------------
INT 25 - PC-CACHE.SYS - INSTALLATION CHECK
    AL = FFh
    SI = 4358h
Return: SI = 6378h if installed
        CX = segment of device driver PC-CACHE.SYS
        DX = version (major in DH, minor in DL)
Note:    PC-CACHE.SYS is a small device driver used by PC-Cache v5.x to obtain
      access to certain disk drivers for devices such as Bernoulli drives
SeeAlso: INT 13/AH=A0h
----------26---------------------------------
INT 26 - DOS 1+ - ABSOLUTE DISK WRITE (except partitions > 32M)
    AL = drive number (00h = A:, 01h = B:, etc)
    CX = number of sectors to write
    DX = starting logical sector number (0000h - highest sector on drive)
    DS:BX -> data to write
Return: CF clear if successful
    CF set on error
        AH = status
         80h device failed to respond (timeout)
         40h seek operation failed
         20h controller failed
         10h data error (bad CRC)
         08h DMA failure
         04h requested sector not found
         03h write-protected disk (INT 26 only)
         02h bad address mark
         01h bad command
        AL = error code (same as passed to INT 24 in DI)
    may destroy all other registers except segment registers
Notes:    original flags are left on stack, and must be popped by caller
    this call bypasses the DOS filesystem
BUG:    DOS 3.1 through 3.3 set the word at ES:[BP+1Eh] to FFFFh if AL is an
    invalid drive number
SeeAlso: INT 13/AH=03h,INT 25
----------26---------------------------------
INT 26 - DOS 3.31+ - ABSOLUTE DISK WRITE (>32M hard-disk partition)
    AL = drive number (0=A, 1=B, etc)
    CX = FFFFh
    DS:BX -> disk write packet (see below)
Return: same as above
Notes:    partition is potentially >32M (and requires this form of the call) if
      bit 1 of device attribute word in device driver is set
    original flags are left on stack, and must be removed by caller
    this call bypasses the DOS filesystem
SeeAlso: INT 13/AH=03h,INT 25

Format of disk write packet:
Offset    Size    Description
 00h    DWORD    sector number
 04h    WORD    number of sectors to read
 06h    DWORD    transfer address
---------------------------------------------
INT 26 - COMTROL HOSTESS i/ISA DEBUGGER - ENTER/EXIT EXTENDED ADDRESSING MODE
    ???
Return: ???
SeeAlso: INT 23"COMTROL HOSTESS",INT 27"COMTROL HOSTESS"
----------27---------------------------------
INT 27 - DOS 1+ - TERMINATE AND STAY RESIDENT
    DX = number of bytes to keep resident (max FFF0h)
    CS = segment of PSP
Return: never
Notes:    this is an obsolete call
    INT 22, INT 23, and INT 24 are restored from the PSP
    does not close any open files
    the minimum number of bytes which will remain resident is 110h for
      DOS 2.x and 60h for DOS 3+; there is no minimum for DOS 1.x, which
      implements this service in COMMAND.COM rather than the DOS kernel
SeeAlso: INT 21/AH=31h
---------------------------------------------
INT 27 - COMTROL HOSTESS i/ISA DEBUGGER - INVOKE REMOTE TURBO DEBUGGER KERNEL
    ???
Return: ???
Desc:    invoke a copy of the remote Turbo Debugger kernel on the Hostess i
      controller
SeeAlso: INT 20"COMTROL HOSTESS",INT 26"COMTROL HOSTESS"
----------28---------------------------------
INT 28 - DOS 2+ - DOS IDLE INTERRUPT
   Invoked each time one of the DOS character input functions loops while
   waiting for input.  Since a DOS call is in progress even though DOS is
   actually idle during such input waits, hooking this function is necessary
   to allow a TSR to perform DOS calls while the foreground program is
   waiting for user input.  The INT 28h handler may invoke any INT 21 function
   except functions 00h through 0Ch.  Under DOS 2.x, the critical error flag
   (the byte immediately after the InDOS flag) must be set in order to call
   DOS functions 50h/51h without destroying the DOS stacks.

Notes:    calls to INT 21/AH=3Fh,40h may not use a handle which refers to CON
    at the time of the call, the InDOS flag (see INT 21/AH=34h) is normally
      set to 01h; if larger, DOS is truly busy and should not be reentered
    the default handler is an IRET instruction
    supported in OS/2 compatibility box
SeeAlso: INT 21/AH=34h,INT 2A/AH=84h
----------29---------------------------------
INT 29 C - DOS 2+ - FAST CONSOLE OUTPUT
    AL = character to display
Return: nothing
Notes:    automatically called when writing to a device with bit 4 of its device
      driver header set (see also INT 21/AH=52h)
    COMMAND.COM v3.2 and v3.3 compare the INT 29 vector against the INT 20
      vector and assume that ANSI.SYS is installed if the segment is larger
    the default handler under DOS 2.x and 3.x simply calls INT 10/AH=0Eh
    the default handler under DESQview 2.2 understands the <Esc>[2J
      screen-clearing sequence, calls INT 10/AH=0Eh for all others
SeeAlso: INT 79
----------2A00-------------------------------
INT 2A - NETWORK (Microsoft, LANtastic) - INSTALLATION CHECK
    AH = 00h
Return: AH <> 00h if installed
    CF set if NetWare v2.15 NetBIOS emulator installed
SeeAlso: INT 5C
----------2A0000-----------------------------
INT 2A - AT&T Starlan Extended NetBIOS (var length names) - INSTALLATION CHECK
    AX = 0000h
Return: AH = DDh
SeeAlso: INT 5B
----------2A01-------------------------------
INT 2A - NETWORK (Microsoft,LANtastic) - EXECUTE NETBIOS REQUEST,NO ERROR RETRY
    AH = 01h
    ES:BX -> NCB (see INT 5C)
Return: AL = NetBIOS error code
    AH = 00h if no error
       = 01h on error
SeeAlso: AH=04h,AX=0500h,INT 5B,INT 5C"NetBIOS"
----------2A02-------------------------------
INT 2A - NETWORK (Microsoft) - SET NET PRINTER MODE
    AH = 02h
    ???
Return: ???
----------2A0300-----------------------------
INT 2A - NETWORK (Microsoft,LANtastic) - CHECK DIRECT I/O
    AX = 0300h
    DS:SI -> ASCIZ device name (may be full path or only drive specifier--
        must include the colon)
Return: CF clear if direct physical addressing (INT 13,INT 25) permissible
    CF set if access via files only
Notes:    do not use direct disk accesses if this function returns CF set or the
      device is redirected (INT 21/AX=5F02h)
    may take some time to execute
    called by DOS kernel on INT 25 and INT 26
SeeAlso: INT 13,INT 25,INT 26,INT 21/AX=5F02h
----------2A04-------------------------------
INT 2A - NETWORK (Microsoft,LANtastic) - EXECUTE NetBIOS REQUEST
    AH = 04h
    AL = error retry
        00h automatically retry request on errors 09h, 12h, and 21h
        01h no retry
    ES:BX -> Network Control Block (see INT 5C"NetBIOS")
Return: AX = 0000h if successful
    AH = 01h on error
        AL = error code
Notes:    invokes either INT 5B or INT 5C as appropriate
    NetWare 2.15 NetBIOS emulator returns CF clear if succesful, set on err
SeeAlso: AH=01h,AX=0500h,INT 5B,INT 5C"NetBIOS"
----------2A0500-----------------------------
INT 2A - NETWORK (Microsoft,LANtastic) - GET NETWORK RESOURCE AVAILABILITY
    AX = 0500h
Return: AX reserved
    BX = number of network names available
    CX = number of network control blocks available
    DX = number of network sessions available
SeeAlso: AH=01h,AH=04h,INT 5C"NetBIOS"
----------2A06-------------------------------
INT 2A - NETBIOS, LANtastic - NETWORK PRINT-STREAM CONTROL
    AH = 06h
    AL = 01h set concatenation mode (all printer output put in one job)
         02h set truncation mode (default)
         printer open/close starts new print job
         03h flush printer output and start new print job
Return: CF set on error
        AX = error code
    CF clear if successful
Notes:    subfunction 03h is equivalent to Ctrl/Alt/keypad-*
    LANtastic v4.x no longer supports this call
SeeAlso: INT 21/AX=5D08h,INT 21/AX=5D09h,INT 2F/AX=1125h
----------2A2001-----------------------------
INT 2A - MS Networks or NETBIOS - ???
    AX = 2001h
    ???
Return: ???
Note:    intercepted by DESQview 2.x
----------2A2002-----------------------------
INT 2A - NETWORK - ???
    AX = 2002h
    ???
Return: ???
Note:    called by MSDOS 3.30-5.00 APPEND
----------2A2003-----------------------------
INT 2A - NETWORK - ???
    AX = 2003h
    ???
Return: ???
Note:    called by MSDOS 3.30-5.00 APPEND
----------2A7802-----------------------------
INT 2A - NETWORK - PC LAN PROG v1.31+ - GET LOGGED ON USER NAME
    AX = 7802h
    ES:DI -> 8-byte buffer to be filled
Return: AL = 00h if no user logged on to Extended Services
    AL <> 00h if user logged on to Extended Services
        buffer at ES:DI filled with name, padded to 8 chars with blanks.
----------2A80-------------------------------
INT 2A C - NETWORK - BEGIN DOS CRITICAL SECTION
    AH = 80h
    AL = critical section number (00h-0Fh)
        01h DOS kernel, SHARE.EXE
        apparently for maintaining the integrity of DOS/SHARE/NET
          data structures
        02h DOS kernel
        ensures that no multitasking occurs while DOS is calling an
          installable device driver
        05h DOS 4.x only IFSFUNC
        06h DOS 4.x only IFSFUNC
        08h ASSIGN.COM
        0Ah MSCDEX
Notes:    normally hooked to avoid interrupting a critical section, rather than
      called
    the handler should ensure that none of the critical sections are
      reentered, usually by suspending a task which attempts to reenter
      an active critical section
    the DOS kernel does not invoke critical sections 01h and 02h unless it
      is patched.  DOS 3.1 through 3.31 contain a zero-terminated list of
      words beginning at offset 02C3h in the IBMDOS segment; each word
      contains the offset within the IBMDOS segment of a byte which must
      be changed from C3h to 50h to enable use of critical sections.
SeeAlso: AH=81h,AH=82h,AH=87h,INT 21/AX=5D06h,INT 21/AX=5D0Bh
----------2A81-------------------------------
INT 2A C - NETWORK - END DOS CRITICAL SECTION
    AH = 81h
    AL = critical section number (00h-0Fh) (see AH=80h)
Notes:    normally hooked rather than called
    the handler should reawaken any tasks which were suspended due to an
      attempt to enter the specified critical section
SeeAlso: AH=80h,AH=82h,AH=87h
----------2A82-------------------------------
INT 2A C - NETWORK - END DOS CRITICAL SECTIONS 0 THROUGH 7
    AH = 82h
Notes:    called by the INT 21h function dispatcher for function 0 and functions
      greater than 0Ch except 59h, and on process termination
    the handler should reawaken any tasks which were suspended due to an
      attempt to enter one of the critical sections 0 through 7
SeeAlso: AH=81h
----------2A84-------------------------------
INT 2A C - Microsoft Networks - KEYBOARD BUSY LOOP
    AH = 84h
Note:    similar to DOS's INT 28h, called from inside the DOS keyboard input
      loop to allow network to process requests
SeeAlso: INT 28
----------2A87-------------------------------
!!!
INT 2A C - PRINT??? - CRITICAL SECTION
    AH = 87h
    AL = start/end
        00h start
        01h end
Note:    called by PRINT.COM
SeeAlso: AH=80h,AH=81h
----------2A89-------------------------------
INT 2A - Network - ???
    AH = 89h
    AL = ???  (ASSIGN uses 08h)
    ???
Return: ???
----------2A90-------------------------------
INT 2A - IBM PC 3270 EMULATION PROGRAM - ???
    AH = 90h
    ???
Return: ???
Note:    the LANtastic redirector and SERVER.EXE use this function with AL=01h,
      03h-07h,0Ch-11h
----------2AC2-------------------------------
INT 2A - Network - ???
    AH = C2h
    AL = subfunction
        07h ???
        08h ???
    BX = 0001h
    ???
Return: ???
Note:    called by DOS 3.30-5.00 APPEND
----------2AFF90-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
    AX = FF90h
Return: AX = ???
Note:    PREDIR.EXE is the network printer redirector included as part of the
      PC/TCP system by FTP Software, Inc.
----------2AFF91-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
    AX = FF91h
    BX = ???
Return: AX = status???
----------2AFF92-----------------------------
INT 2A - PC/TCP PREDIR.EXE - INSTALLATION CHECK
    AX = FF92h
Return: AX = 0000h if installed
       BX = redirected printer port (FFFFh if no printers redirected)
       CX = version (CH = major, CL = minor)
Note:    PREDIR.EXE is the network printer redirector included as part of the
      PC/TCP system by FTP Software, Inc.
----------2AFF93-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
    AX = FF93h
Return: AX = ???
----------2AFF94-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
    AX = FF94h
    BX = ???
    CX = ???
    DX = ???
Return: AX = ???
Note:    PREDIR.EXE is the network printer redirector included as part of the
      PC/TCP system by FTP Software, Inc.
----------2AFF95-----------------------------
INT 2A - PC/TCP PREDIR.EXE - GET CONFIGURATION STRINGS
    AX = FF95h
    CX = what to get
        0000h ??? (returned pointer to "C:\COMMAND.COM")
        0001h spooling program
        0002h ???
        0003h spool file name
        0004h swap file name
Return: AX = status
        0000h successful
    BX:DX -> ASCIZ configuration string
----------2AFF96-----------------------------
INT 2A - PC/TCP PREDIR.EXE - SET PRINT JOB TERMINATION CONFIGURATION
    AX = FF96h
    CX = what to set
        0000h ???
        0001h print-on-hotkey state
        0002h print-on-exit state
        0003h print job timeout in clock ticks
        0004h print-on-EOF state
    BX = new value (0000h disabled, 0001h enabled except for timeout)
Return: AX = ???
SeeAlso: AX=FF97h
Note:    PREDIR.EXE is the network printer redirector included as part of the
      PC/TCP system by FTP Software, Inc.
----------2AFF97-----------------------------
INT 2A - PC/TCP PREDIR.EXE - GET PRINT JOB TERMINATION CONFIGURATION
    AX = FF97h
    CX = what to get
        0000h ???
        0001h print-on-hotkey state
        0002h print-on-exit state
        0003h print job timeout in clock ticks
        0004h print-on-EOF state
Return: AX = status
        0000h successful
    BX = old value (0000h disabled, 0001 enabled except for timeout)
SeeAlso: AX=FF96h
----------2B---------------------------------
INT 2B - DOS 2+ - RESERVED
Note:    this vector is not used in DOS versions <= 5.00, and points at an IRET
----------2C---------------------------------
INT 2C - DOS 2+ - RESERVED
Note:    this vector is not used in DOS versions <= 5.00, and points at an IRET
----------2C---------------------------------
INT 2C - STARLITE architecture - KERNEL API
Note:    STARLITE is an architecture by General Software for a series of MS-DOS
      compatible operating systems (OEM DOS, NETWORK DOS, and SMP DOS) to
      be released in 1991.    The interrupt number is subject to change
      before the actual release.
----------2D---------------------------------
INT 2D - DOS 2+ - RESERVED
Note:    this vector is not used in DOS versions <= 5.00, and points at an IRET
----------2D---------------------------------
INT 2D - ALTERNATE MULTIPLEX INTERRUPT SPECIFICATION (AMIS) [v3.5]
    AH = multiplex number
    AL = function
        00h installation check
        Return: AL = 00h if free
            AL = FFh if multiplex number in use
                CX = binary version number (CH = major, CL = minor)
                DX:DI -> signature string (see below) identifying
                    the program using the multiplex number
        01h get entry point
        Return: AL = 00h if all API calls via INT 2D
            AL = FFh if entry point supported
                DX:BX -> entry point for bypassing interrupt chain
        02h uninstall
        DX:BX = return address for successful uninstall (may be
            ignored by TSR)
        Return: AL = status
                00h not implemented
                01h unsuccessful
                02h can not uninstall yet, will do so when able
                03h safe to remove, but no resident uninstaller
                (TSR still enabled)
                BX = segment of memory block with resident code
                04h safe to remove, but no resident uninstaller
                (TSR now disabled)
                BX = segment of memory block with resident code
                05h not safe to remove now, try again later
                FFh successful
            return at DX:BX with AX destroyed if successful and
              TSR honors specific return address
        03h request pop-up
        Return: AL = status
                00h not implemented or TSR is not a pop-up
                01h can not pop up at this time, try again later
                02h can not pop up yet, will do so when able
                03h already popped up
                04h unable to pop up, user intervention required
                BX = standard reason code
                    0000h unknown failure
                    0001h interrupt chain passes through memory
                      which must be swapped out to pop up
                    0002h swap-in failed
                CX = application's reason code if nonzero
                FFh TSR popped up and was exited by user
                BX = return value
                    0000h no return value
                    0001h TSR unloaded
                    0002h-00FFh reserved
                    0100h-FFFFh application-dependent
        04h determine chained interrupts
        BL = interrupt number (except 2Dh)
        Return: AL = status
                00h not implemented
                01h (obsolete) unable to determine
                02h (obsolete) interrupt hooked
                03h (obsolete) interrupt hooked, address returned
                DX:BX -> TSR's interrupt BL handler
                04h list of hooked interrupts returned
                DX:BX -> interrupt hook list (see below)
                FFh interrupt not hooked
        Notes:    since INT 2D is known to be hooked, the resident code
              need not test for BL=2Dh (to minimize its size), and
              the return value is therefore undefined in that case.
            BL is ignored if the TSR returns AL=04h; in that case,
              the caller needs to scan the return list rather than
              making additional calls to this function.  If the
              return is not 00h or 04h, then the caller must cycle
              through the remaining interrupt numbers it wishes to
              check.
            return values 01h thru 03h are disparaged and will be
              removed from the next version of this specification;
              they are included for compatibility with version 3.3,
              though they were probably never used in any
              implementation
        05h get hotkeys
        Return: AL = status
                00h not implemented
                FFh supported
                DX:BX -> hotkey list (see below)
        06h-0Fh reserved for future enhancements
        Return: AL = 00h (not implemented)
        other  application-dependent
Notes:    programs should not use fixed multiplex numbers; rather, a program
      should scan all multiplex numbers from 00h to FFh, remembering the
      first unused multiplex in case the program is not yet installed.
      For multiplex numbers which are in use, the program should compare
      the first 16 bytes of the signature string to determine whether it
      is already installed on that multiplex number.  If not previously
      installed, it should use the first free multiplex number.
    functions other than 00h are not valid unless a program is installed
      on the selected multiplex number
    to be considered fully compliant with version 3.5 of the specification,
      programs must implement at least functions 00h, 02h (no resident
      uninstall code required), and 04h (return value 04h).     TSRs that
      provide hotkeys with which the user can activate them must also
      implement function 05h.  The absolute minimum fully-compliant
      implementation has an overhead of 64 bytes (80 bytes with function
      05h) plus 22 bytes per hooked interrupt (for the interrupt sharing
      protocol header and hook list entry).
    the signature string and description may be used by memory mappers
      to display the installed programs
    users of this proposal should adhere to the IBM interrupt sharing
      protocol (see below), which will permit removal of TSRs in
      arbitrary order and interrupt handler reordering.  All TSRs
      following this proposal should be removable, though they need not
      keep the code for removing themselves resident; it is acceptable
      for a separate program to perform the removal.
    A sample implementation including example TSRs and utility programs
      may be found in a separate package distributed as AMISLnnn.ZIP
      (AMISL090.ZIP as of this writing).
    Please let me know if you choose to follow this proposal.  The
      signature and a list of the private API calls you use would be
      appreciated, as well.
SeeAlso: INT 2F

Format of signature string:
Offset    Size    Description
 00h  8 BYTEs    blank-padded manufacturer's name (possibly abbreviated)
 08h  8 BYTEs    blank-padded product name
 10h 64 BYTEs    ASCIZ product description (optional, may be a single 00h)
Note:    it is not necessary to reserve a full 64 bytes for the description,
      just enough to store the actual ASCIZ string

Format of interrupt hook list [array]:
Offset    Size    Description
 00h    BYTE    interrupt number (last entry in array is 2Dh)
 01h    WORD    offset within hook list's segment of the interrupt handler
        this will point at the initial short jump of the interrupt
        sharing protocol header (see below)

Format of hotkey list:
Offset    Size    Description
 00h    BYTE    type of hotkey checking
        bit 0: checks before chaining INT 09
        bit 1: checks after chaining INT 09
        bit 2: checks before chaining INT 15/AH=4Fh
        bit 3: checks after chaining INT 15/AH=4Fh
        bit 4: checks on INT 16/AH=00h,01h,02h
        bit 5: checks on INT 16/AH=10h,11h,12h
        bits 6,7: reserved (0)
 01h    BYTE    number of hotkeys (may be zero if TSR can disable hotkeys)
 02h 6N BYTEs    array of hotkey definitions
        (one per hotkey, first should be primary hotkey)
        Offset    Size    Description
         00h    BYTE    hotkey scan code (00h/80h if shift states only)
                hotkey triggers on release if bit 7 set
         01h    WORD    required shift states (see below)
         03h    WORD    disallowed shift states (see below)
         05h    BYTE    flags
                bit 0: hotkey chained before processing
                bit 1: hotkey chained after processing
                bit 2: others should pass through this hotkey
                    so that it can be monitored
                bit 3: hotkey will not activate if other keys
                    pressed/released before hotkey press is
                    completed
                bit 4: this key is remapped into some other key
                bit 5-7: reserved (0)
Notes:    except for bit 7, the shift states correspond exactly to the return
      values from INT 16/AH=12h.  A set bit in the required states word
      indicates that the corresponding shift state must be active when the
      hotkey's scan code is received for the hotkey to be recognized; a
      clear bit means that the corresponding state may be ignored.    A set
      bit in the disallowed shift states word indicates that the
      corresponding shift state must be inactive.
    if bit 2 is set, either control key may be pressed for the hotkey; if
      bits 8 and 10 are both set, then both control keys must be pressed.
      Similarly for bits 3 and 9/11, as well as 7 and 0/1.
    for the disallowed-states word, if one of the "either" bits is set,
      then both the corresponding left bit and right bit must be set
    examples:
        Ctrl-Alt-Del monitoring: 53h 000Ch 0003h 06h
        Alt-key tap (DESQview):     B8h 0000h 0007h 08h
        Shf-Shf-N (NOTE.COM):     31h 0003h 000Ch 00h

Bitmask of shift states:
 bit 0: right shift pressed
 bit 1: left shift pressed
 bit 2: either control key pressed
 bit 3: either Alt key pressed
 bit 4: ScrollLock active
 bit 5: NumLock active
 bit 6: CapsLock active
 bit 7: either shift key pressed
 bit 8: left control key pressed
 bit 9: left Alt key pressed
 bit 10: right control key pressed
 bit 11: right Alt key pressed
 bit 12: ScrollLock pressed
 bit 13: NumLock pressed
 bit 14: CapsLock pressed
 bit 15: SysRq key pressed

Format of interrupt sharing protocol interrupt handler entry point:
Offset    Size    Description
 00h  2 BYTEs    short jump to actual start of interrupt handler, immediately
        following this data block (EBh 10h)
 02h    DWORD    address of next handler in chain
 06h    WORD    signature 424Bh
 08h    BYTE    EOI flag
        00h software interrupt or secondary hardware interrupt handler
        80h primary hardware interrupt handler (will issue EOI)
 09h  2 BYTEs    short jump to hardware reset routine
        must point at a valid FAR procedure (may be just RETF)
 0Bh  7 BYTEs    reserved (0)

Signatures known to be in use:
 'Crynwr  ' 'SPELLER '    TSR spelling-checker
 'heathh  ' 'Monitor '
 'Ralf B  ' 'FASTMOUS'    example TSR included with sample AMIS library code
 'Ralf B  ' 'NOLPT n '    example TSR -- turn LPTn into bit-bucket
 'Ralf B  ' 'NOTE    '    example TSR -- popup note-taker
 'Ralf B  ' 'RBkeyswp'    RBkeyswap v3.0+ -- swap Esc/~ and LCtrl/CapsLock keys
 'Ralf B  ' 'SWITCHAR'    example TSR -- add switchar() support removed from DOS5
 'Ralf B  ' 'VGABLANK'    example TSR -- VGA-only screen blanker
 'TifaWARE' 'EATMEM  '    George A. Theall's public domain memory restrictor for
            testing programs (v1.1+)
        'RECALL  '    public domain commandline editor and history (v1.2+)
 'Todd      ' 'XPTR2   '    PC-to-Transputer interface by Todd Radel
----------2E---------------------------------
INT 2E - DOS 2+ - PASS COMMAND TO COMMAND INTERPRETER FOR EXECUTION
    DS:SI -> commandline to execute (see below)
Return: all registers except CS:IP destroyed
    AX = status (4DOS v4.0)
       0000h successful
       FFFFh error before processing command (not enough memory, etc)
       other error number returned by command
Notes:    this call allows execution of arbitrary commands (including COMMAND.COM
      internal commands) without loading another copy of COMMAND.COM
    if COMMAND.COM is the user's command interpreter, the primary copy
      executes the command; this allows the master environment to be
      modified by issuing a "SET" command, but changes in the master
      environment will not become effective until all programs descended
      from the primary COMMAND.COM terminate
    since COMMAND.COM processes the string as if typed from the keyboard,
      the transient portion needs to be present, and the calling program
      must ensure that sufficient memory to load the transient portion can
      be allocated by DOS if necessary
    results are unpredictable if invoked by a program run from a batch file
      because this call is not reentrant and COMMAND.COM uses the same
      internal variables when processing a batch file
    hooked but ignored by 4DOS v3.0 COMMAND.COM replacement unless SHELL2E
      has been loaded
    the MSDOS 5 Programmer's Reference calls this "Reload Transient"

Format of commandline:
Offset    Size    Description
 00h    BYTE    length of command string, not counting trailing CR
 01h    var    command string
  N    BYTE    0Dh (CR)
----------2E----BXE22E-----------------------
INT 2E - 4DOS v2.x-3.03 SHELL2E.COM - UNINSTALL
    BX = E22Eh
    DS:SI -> zero byte
Return: if successful, SHELL2E terminates itself with INT 21/AH=4Ch
---------------------------------------------