Int 15  - Microsoft Tsr Specification
 Int 15 Fn 00  - Cassette - Turn On Tape Drive's Motor (pc And PCjr Only)
 Int 15 Fn 00  - Amstrad PC1512 - Get And Reset Mouse Counts
 Int 15 Fn 00  - Vmix V2+ - Installation Check
 Int 15 Fn 00  - Multidos Plus - Give Up Time Slice
 Int 15 Fn 01  - Cassette - Turn Off Tape Drive's Motor (pc And PCjr Only)
 Int 15 Fn 01  - Amstrad PC1512 - Write Data To Non-volatile RAM
 Int 15 Fn 01  - Vmix - "sys_chanreq" - I/o Channel Object Manager
 Int 15 Fn 01  - Multidos Plus - Request Resource Semaphore
 Int 15 Fn 02  - Cassette - Read Data (pc And PCjr Only)
 Int 15 Fn 02  - Amstrad PC1512 - Read Data From Non-volatile RAM
 Int 15 Fn 02  - Vmix - "sys_memreq" - Memory Object Manager
 Int 15 Fn 02  - Multidos Plus - Release Resource Semaphore
 Int 15 Fn 03  - Cassette - Write Data (pc And PCjr Only)
 Int 15 Fn 03  - Amstrad PC1512 - Write Vdu Color Plane Write Register
 Int 15 Fn 03  - Vmix - "sys_pinput" - Prompted Console Input
 Int 15 Fn 03  - Multidos Plus - Suspend Task For Interval
 Int 15 Fn 04  - System - Build Abios System Parameter Table (ps)
 Int 15 Fn 04  - Amstrad PC1512 - Write Vdu Color Plane Read Register
 Int 15 Fn 04  - Vmix - "sys_vprintf" - Formatted Output To Stream
 Int 15 Fn 04  - Multidos Plus - Send Message To Another Task
 Int 15 Fn 05  - System - Build Abios Initialization Table (ps)
 Int 15 Fn 05  - Amstrad PC1512 - Write Vdu Graphics Border Register
 Int 15 Fn 05  - Vmix - "sys_getpid" - Get Process Id Of Current Process
 Int 15 Fn 05  - Multidos Plus - Check Mailbox
 Int 15 Fn 06  - Amstrad PC1512 - Get Ros Version Number
 Int 15 Fn 06  - Vmix - "sys_getpcb" - Get Pointer To Process Control Block
 Int 15 Fn 06  - Multidos Plus - Read Mailbox
 Int 15 Fn 07  - Vmix - "sys_getocb" - Get Pointer To Object Control Block
 Int 15 Fn 07  - Multidos Plus - Spawn Internal Task (create New Thread)
 Int 15 Fn 08  - Vmix - "sys_getccb" - Get Channel Control Block
 Int 15 Fn 08  - Multidos Plus - Terminate Internal Task (kill Thread)
 Int 15 Fn 09  - Vmix - "sys_getqueue" - Get Id Of Queued Element
 Int 15 Fn 09  - Multidos Plus - Change Task's Priority
 Int 15 Fn 0A  - Vmix - "sys_qetqnext" - Get Id Of Next Queued Element
 Int 15 Fn 0A  - Multidos Plus - Change Time Slice Interval
 Int 15 Fn 0B  - Vmix - "sys_sysreq" - System Configuration Manager
 Int 15 Fn 0B  - Multidos Plus - Force Display Output To Physical Screen Memo
 Int 15 Fn 0C  - Vmix - "sys_getstack" - Get Pointer To Process Tss Stack
 Int 15 Fn 0C  - Multidos Plus - Restore Old Video Display Memory
 Int 15 Fn 0D  - Vmix - "sys_spawn" - Start A Child Process Job Shell
 Int 15 Fn 0D  - Multidos Plus - Disable Multitasking
 Int 15 Fn 0E  - Vmix - "sys_kill" - Hard Terminate Process
 Int 15 Fn 0E  - Multidos Plus - Enable Multitasking
 Int 15 Fn 0F  C - System - Format Unit Periodic Interrupt (ps Esdi Drives On
 Int 15 Fn 0F  - Vmix - "sys_getqkey" - Get Key Field Of Queued Element
 Int 15 Fn 0F  - Multidos Plus - Execute A Multidos Plus Command
 Int 15 Fn 10  - Vmix - "sys_virtual" - Execute Conforming Function In Protec
 Int 15 Fn 10  - Multidos Plus - Test Resource Semaphore
 Int 15 Fn 1000  - Topview - "pause" - Give Up CPU Time
 Int 15 Fn 1001  - Topview - "getmem" - Allocate "system" Memory
 Int 15 Fn 1002  - Topview - "putmem" - Deallocate "system" Memory
 Int 15 Fn 1003  - Topview - "printc" - Display Character/attribute On Screen
 Int 15 Fn 10  - Topview - Unimplemented In Dv 2.x
 Int 15 Fn 1013  - Topview - "getbit" - Define A 2nd-level Interrupt Handler
 Int 15 Fn 1014  - Topview - "freebit" - Undefine A 2nd-level Interrupt Handl
 Int 15 Fn 1015  - Topview - "setbit" - Schedule One Or More 2nd-level Interr
 Int 15 Fn 1016  - Topview - "isobj" - Verify Object Handle
 Int 15 Fn 1016  - Topview - "isobj" - Verify Object Handle  (Cont.)
 Int 15 Fn 1017  - Topview - Unimplemented In Dv 2.x
 Int 15 Fn 1018  - Topview - "locate" - Find Window At A Given Screen Locatio
 Int 15 Fn 1019  - Topview - "sound" - Make Tone
 Int 15 Fn 101A  - Topview - "ostack" - Switch To Task's Internal Stack
 Int 15 Fn 101B  - Topview - "beginc" - Begin Critical Region
 Int 15 Fn 101C  - Topview - "endc" - End Critical Region
 Int 15 Fn 101D  - Topview - "stop" - Stop Task
 Int 15 Fn 101E  - Topview - "start" - Start Task
 Int 15 Fn 101F  - Topview - "disperor" - Pop-up Error Window
 Int 15 Fn 1020  - Topview - Unimplemented In Dv V2.00+
 Int 15 Fn 1021  - Topview - "pgmint" - Interrupt Another Task
 Int 15 Fn 1022  - Topview - "getver" - Get Version
 Int 15 Fn 1023  - Topview - "poswin" - Position Window
 Int 15 Fn 1024  - Topview - "getbuf" - Get Virtual Screen Info
 Int 15 Fn 1025  - Topview - "ustack" - Switch Back To User's Stack
 Int 15 Fn 10  - Desqview (topview???) - Unimplemented In Dv 2.x
 Int 15 Fn 102B  - Desqview V2.00+ (topview???) - "posttask" - Awaken Task
 Int 15 Fn 102C  - Desqview V2.00+ - "newproc" - Start New Application In New
 Int 15 Fn 102D  - Desqview V2.00+ - "kmouse" - Keyboard Mouse Control
 Int 15 Fn 102E  - Desqview V2.40+ - Allocate System Memory
 Int 15 Fn 11  - Topview Commands
 Int 15 Fn 11  - Vmix - "sys_system" - Execute Shell System Commands
 Int 15 Fn 11  - Multidos Plus - Turn Off Altz Toggle
 Int 15 Fn 1117  - Desqview V2.20+ - "assertmap" - Get/set Mapping Context
 Int 15 Fn 11DE  - Desqview - Qext.sys - Installation Check
 Int 15 Fn 12  - Vmix - "sys_sleep" - Put Process To Sleep
 Int 15 Fn 12  - Multidos Plus - Turn On Altz Toggle
 Int 15 Fn 12  - Topview - Send Message - "handle" - Return Object Handle
 Int 15 Fn 12  - Topview - Send Message - "new" - Create New Object
 Int 15 Fn 12  - Topview - Send Message - "free" - Free An Object
 Int 15 Fn 12  - Topview - Send Message - "addr" - Get Handle Of Message Send
 Int 15 Fn 12  - Desqview V2.26+ - "connect" - Connect Two Windows
 Int 15 Fn 12  - Topview - Send Message - "dir" - Get Panel File Directory
 Int 15 Fn 12  - Topview - Send Message - "read" - Read Next Logical Line Of
 Int 15 Fn 12  - Topview - Send Message - "read" - Get Next Record From Objec
 Int 15 Fn 12  - Topview - Send Message - "read" - Wait For Timer To Expire
 Int 15 Fn 12  - Topview - Send Message - "apply" - Write Panel To Window
 Int 15 Fn 12  - Topview - Send Message - "write" - Write To Object
 Int 15 Fn 12  - Topview - Send Message - "write" - Write String To Window
 Int 15 Fn 12  - Topview - Send Message - "write" - Write String To Window  (Cont.)
 Int 15 Fn 12  - Topview - Send Message - "write" - Write String To Window  (Cont.)
 Int 15 Fn 12  - Desqview 2.20+ - Send Message - "setpri" - Set Priority With
 Int 15 Fn 12  - Desqview 2.20+ - Send Message - "getpri" - Get Priority With
 Int 15 Fn 12  - Topview - Send Message - "sizeof" - Get Object Size
 Int 15 Fn 12  - Topview - Send Message - "len" - Get Object Length
 Int 15 Fn 12  - Topview - Send Message - "addto" - Write Chars And Attribs T
 Int 15 Fn 12  - Topview - Send Message - "addto" - Send Mailbox Message/stat
 Int 15 Fn 12  - Topview - Send Message - "addto" - Set Object Bits
 Int 15 Fn 12  - Topview - Send Message - "subfrom" - Write Attributes To Win
 Int 15 Fn 12  - Topview - Send Message - "subfrom" - Send Mailbox Message/st
 Int 15 Fn 12  - Topview - Send Message - "subfrom" - Remove Object From Obje
 Int 15 Fn 12  - Topview - Send Message - "subfrom" - Reset Object Bits
 Int 15 Fn 12  - Topview - Send Message - "open" - Open Object
 Int 15 Fn 12  - Topview - Send Message - "close" - Close Object
 Int 15 Fn 12  - Topview - Send Message - "erase" - Erase Object
 Int 15 Fn 12  - Topview - Send Message - "status" - Get Object Status
 Int 15 Fn 12  - Topview - Send Message - "eof" - Get Object Eof Status
 Int 15 Fn 12  - Topview - Send Message - "at" - Position Object Cursor
 Int 15 Fn 12  - Topview - Send Message - "setname" - Assign Name To Mailbox
 Int 15 Fn 12  - Topview - Send Message - "setscale" - Set Pointer Scale Fact
 Int 15 Fn 12  - Topview - Send Message - "readn" - Get Next N Object Bytes
 Int 15 Fn 12  - Desqview 2.50+ - Send Message - "getname" - Get Name Of Mail
 Int 15 Fn 12  - Topview - Send Message - "getscale" - Get Pointer Scale Fact
 Int 15 Fn 12  - Topview - Send Message - "redraw" - Redraw Window
 Int 15 Fn 12  - Desqview 2.50+ - Send Message - "readinto" - Get Next Mail M
 Int 15 Fn 12  - Topview - Send Message - "seticon" - Specify Pointer Icon
 Int 15 Fn 12  - Topview - Send Message - "setesc" - Set Escape Routine Addre
 Int 15 Fn 12  - Topview - Send Message - "lock" - Request Exclusive Access T
 Int 15 Fn 12  - Desqview V2.20+ - Send Message - "setflags" - Set Object Fla
 Int 15 Fn 12  - Desqview V2.20+ - Send Message - "getflags" - Get Object Fla
 Int 15 Fn 12  - Desqview V2.42-2.52 - Bug
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 00h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 01h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 02h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 03h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 04h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 05h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 06h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 07h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 08h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 09h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 0ah With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 0bh With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 0ch With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 0dh With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 0eh With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 0fh With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 10h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 11h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 12h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 13h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 14h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 15h With Error Recovery
 Int 15 Fn 12  - Desqview V2.50+ - Send Message 16h With Error Recovery
 Int 15 Fn 13  - Vmix - "sys_wake" - Wake Sleeping Process
 Int 15 Fn 13  - Multidos Plus - Get Task Control Block
 Int 15 Fn 14  - Vmix - "sys_clrwindow" - Clear Window
 Int 15 Fn 14  - Multidos Plus - Check If Multidos Foreground Or Background
 Int 15 Fn 15  - Vmix - "sys_setbwindow" - Set Banner Window Message
 Int 15 Fn 15  - Multidos Plus - Get System Block
 Int 15 Fn 16  - Vmix - "sys_setwindow" - Set Root Window Size And Home Curso
 Int 15 Fn 16  - Multidos Plus - Initialization
 Int 15 Fn 17  - Vmix - "sys_getcolors" - Get Console Window Colors
 Int 15 Fn 17  - Multidos Plus - Map IRQ
 Int 15 Fn 18  - Vmix - "sys_setcolors" - Set Console Colors
 Int 15 Fn 18  - Multidos Plus - Unmap IRQ
 Int 15 Fn 19  - Vmix V2+ - "sys_setconwn" - Set Window Colors
 Int 15 Fn 19  - Multidos Plus - Unmap All IRQs
 Int 15 Fn 1A  - Vmix V2+ - "sys_sint" - Invoke Software Interrupt
 Int 15 Fn 1A  - Multidos Plus - Map Semaphore Name To Number
 Int 15 Fn 1B  - Vmix V2+ - "sys_blkmov" - Move Memory Block
 Int 15 Fn 1B  - Multidos Plus - Request Resource Semaphore By Name
 Int 15 Fn 1C  - Vmix V2+ - "sys_bitblt" - Put Graphical Object At Cursor Pos
 Int 15 Fn 1C  - Multidos Plus - Release Resource Semaphore By Name
 Int 15 Fn 1D  - Vmix V2+ - "sys_getfont" - Get Current Console Graphics Font
 Int 15 Fn 1D  - Multidos Plus - Test Resource Semaphore By Name
 Int 15 Fn 1E  - Vmix V2+ - "sys_setfont" - Set Console Graphics Font
 Int 15 Fn 1E00  - Multidos Plus - Clear Event Counter
 Int 15 Fn 1E01  - Multidos Plus - Trigger Event
 Int 15 Fn 1E02  - Multidos Plus - Wait For Event
 Int 15 Fn 1E08  - Multidos Plus 4.01 - Set Context-switch Functions
 Int 15 Fn 1F  - Vmix V2.???+ - "sys_scrollwin" - Scroll Window
 Int 15 Fn 1F  - Multidos Plus V4.01 - Get Memory Parameters
 Int 15 Fn 20  - Multidos Plus V4.01 - Check If Multitasking Enabled
 Int 15 Fn 2000  U - DOS 3+ Print.com - Disable Critical Region Flag
 Int 15 Fn 2001  U - DOS 3+ Print.com - Set Critical Region Flag
 Int 15 Fn 2010  - OS Hook - Setup Sysreq Routine (at,xt286,ps50+)
 Int 15 Fn 2011  - OS Hook - Completion Of Sysreq Function (at,xt286,ps50+)
 Int 15 Fn 21  - System - Power-on Self-test Error Log (ps50+)
 Int 15 Fn 22  - System - Later Ps/2s - Locate ROM BASIC
 Int 15 Fn 2400  - System - Later Ps/2s - Disable A20 Gate
 Int 15 Fn 2401  - System - Later Ps/2s - Enable A20 Gate
 Int 15 Fn 2402  - System - Later Ps/2s - Get A20 Gate Status
 Int 15 Fn 2403  - System - Later Ps/2s - Query A20 Gate Support
 Int 15 Fn 40  - System - Read/modify Profiles (convertible)
 Int 15 Fn 4000  - Compaq Slt/286 Or Portable 386 - Read Lcd/plasma Timeout
 Int 15 Fn 4001  - Compaq Slt/286 Or Portable 386 - Set Lcd/plasma Timeout
 Int 15 Fn 41  - System - Wait On External Event (convertible And Some Others
 Int 15 Fn 42  - System - Request Power Off (convertible,hp 95lx)
 Int 15 Fn 4280  - Compaq Slt/286 - Enter Standby
 Int 15 Fn 43  - System - Read System Status (convertible)