Int 2F/AX=C000h

TSENGP.COM - INSTALLATION CHECK

AX = C000h

Return:
AL = status
00h not installed, OK to install
FFh installed
DS = segment of resident code

Program: TSENGP.COM is a TSR supplied by Compaq to fix an incompatibility between some applications and Tseng ET4000-based video adapters

Range:
AH=C0h to AH=FFh, selected automatically

Note: The installation check is completed by comparing the first eleven bytes at DS:005Fh against the TSR's code (80h FCh 06h 74h 0Ah 80h FCh 07h 74h 05h EAh)

Category: Video - Int 2Fh - T

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