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AX = FE00h DI = 4E55h ("NU") SI = TSR identifier (see #03140)
Return:
SI = TSR reply lowercase version of SI on entry (i.e. SI ORed with 2020h) execpt SMARTCAN v8.0, which returns SI=6673h ('fs') AH = status 00h installed but disabled internally 01h installed and enabled AL = installed product 00h NCACHE-x or DISKREET 01h SPEEDRV / FILESAVE / EP / DISKMON v6+ installed 02h NCACHE2 / SMARTCAN 45h DISKMON v5 installed BX = length of *.INI file (DISKMON and FILESAVE/EP/SMARTCAN only) (see #03141,#03142) CX = segment of resident portion FFFFh if completely loaded high (NCACHE) DI may be destroyed ---FILESAVE/EP--- DL = ??? (apparently always 00h) ---DISKMON--- DX = ??? (apparently always 1AE6h [v5] / 1B86h [v6] / 1C26h [v7])
Notes: The value returned in CX is incorrect for NCACHE 6.00. All Norton Caches install as SMARTAAR drivers like SMARTDRV v3. NCACHE2 and SPEEDRV both support the SMARTDRV v4+ installation check. To detect Diskreet NDisk drives use CDS/DPB (see INT 21/AH=52h)
See Also:
AX=4A10h/BX=0000h - AX=FE01h - AX=FE02h - AX=FE
See Also:
INT 21/AX=4402h"SMARTDRV"
(Table 03140)
Values for Norton Utilities TSR identifier:
4346h ("CF") NCACHE-F (v5) / NCACHE (v6) / NCACHE2 (v7+) / SPEEDRV
4353h ("CS") NCACHE-S (v5 only)
4443h ("DC") DISKREET
444Dh ("DM") DISKMON
4653h ("FS") FILESAVE (v5) / EP (v6) / SMARTCAN (v7+)
Format of DISKMON.INI file:
Offset Size Description (Table 03141)
-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).
CX:04E0h -> copy in installed TSR (v7-v8)
Format of FILESAVE.INI / EP.INI / SMARTCAN.INI file:
Offset Size Description (Table 03142)
00h 26 BITs drive list (bit set: 00h BYTE drives A: 01h BYTE drives I: 02h BYTE drives Q: 03h BYTE drives Y: Note:
CX:03D2h -> copy in installed TSR (v5).
CX:03F5h -> copy in installed TSR (v6).
CX:0434h -> copy in installed TSR (v7-v8)
Category:
Resident Utilities
-
Int 2Fh
-
N
File protection on, cleared: off):
- H:
- P:
- X:
- 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)
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