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Int 2F Fn FE00 U - Norton Utilities 5.0+ Tsrs - Installation Check/statu [U]
AX = FE00h
DI = 4E55h ("NU")
SI = TSR identifier
4346h ("CF") NCACHE-F (v5) / NCACHE (v6.0+)
4353h ("CS") NCACHE-S (v5 only)
4443h ("DC") DISKREET
444Dh ("DM") DISKMON
4653h ("FS") FILESAVE (v5) / EP (v6.0+)
Return: SI = TSR reply
lowercase version of SI on entry (i.e. SI OR 2020h)
AH = status
00h installed but disabled internally
01h installed and enabled
AL = status
00h NCACHE-x or DISKREET installed
01h FILESAVE / EP / DISKMON v6 installed
45h DISKMON v5 installed
BX = length of *.INI file (DISKMON and FILESAVE/EP only) (see below)
CX = segment of resident portion
FFFFh if completely loaded high (NCACHE)
---FILESAVE/EP---
DL = ??? (apparently always 00h)
---DISKMON---
DX = ??? (apparently always 1AE6h [v5] / 1B86h [v6])
Note: the value returned in CX is incorrect for NCACHE 6.00
See Also: AX=FE01h,AX=FE02h,AX=FE03h,AX=FE04h,AX=FE05h
Format of DISKMON.INI file:
Offset Size Description
-6Ch 108 BYTEs (in memory copy only)
list of filenames which are always protected:
IBMBIO.COM/IBMDOS.COM, IO.SYS/MSDOS.SYS, TBIOS.SYS/TDOS.SYS,
MIO.SYS/IO.BIN, COMMAND.COM
00h BYTE ??? always 01h
01h BYTE disk light (00h off, 01h on)
02h BYTE disk protection (00h off, 01h on)
03h BYTE protected areas
01h system area
02h files
03h system area and files
04h entire disk
04h BYTE floppy access (00h not allowed, 01h allowed)
05h 27 BYTEs filename extension list (9 entries)
(lowercase, blank padded or = 000000h)
20h 240 BYTEs filename list (20 entries)
(lowercase, name and extension blank padded, with '.')
Note: CX:0508h -> copy in installed TSR (v5)
CX:052Fh -> copy in installed TSR (v6)
Format of FILESAVE.INI / EP.INI file:
Offset Size Description
00h 26 BITs drive list (bit set: file protection on, cleared: off):
00h BYTE drives A: - H:
01h BYTE drives I: - P:
02h BYTE drives Q: - X:
03h BYTE drives Y: - Z:
04h BYTE which files to protect
00h all files
01h all files with extension in list
02h all files except those with extension in list
05h 27 BYTEs filename extension list (9 entries, uppercase, ASCIZ)
20h BYTE include files with archive bit clear (00h no, 01h yes)
21h WORD number of days after which files are purged (0 = never)
23h WORD max kilobytes of erased file space to hold (0 = all)
Note: CX:03D2h -> copy in installed TSR (v5.0)
CX:03F5h -> copy in installed TSR (v6.0)
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Written by Dave Pearson