Int 2F/AX=8000h

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CS_TSR specification - TSR INSTALLATION CHECK

AX = 8000h
DS:SI -> 4-byte CS_TSR signature (11h 43h 53h 10h)

Return:
AL = status 00h no CS_TSR-compliant TSRs installed 01h installed, but signature did not match FFh installed, signature matches ES:DI -> resident process block (see #02928) of last installed TSR (if DS:SI pointed at signature on entry)

Program: The CS_TSR specification is a standardized TSR interface by Compact Soft group in Kiev, Ukraine

Desc: Determine whether any CS_TSR-compliant TSRs are installed on the selected multiplex number

Range:
AH=80h to AH=FFh

See Also: AX=8001h"CS_TSR" - AX=8002h"CS_TSR" - AX=8003h"CS_TSR"

Format of CS_TSR process block: Offset Size Description (Table 02928) 00h 4 BYTEs CS_TSR signature 11h 43h 53h 10h 04h BYTE INT 2F multiplex number 05h WORD virtual process handle (unique among loaded TSRs) 07h 2 BYTEs version (binary minor version, then major version) 09h WORD PSP segment of TSR 0Bh DWORD pointer to ASCIZ program name 0Fh 3 BYTEs program creation date (day, month, year) 12h 3 BYTEs process start time (seconds, minutes, hours) 15h 3 BYTEs process start date (day, month, year)

Category: TSR Libraries - Int 2Fh - C

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