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INT 2F - MS Windows - WINDOWS ENHANCED MODE INSTALLATION CHECK AX = 1600h
Return:
AL = status 00h neither Windows 3.x enhanced mode nor Windows/386 2.x running 01h Windows/386 2.x running 80h XMS version 1 driver installed (neither Windows 3.x enhanced mode nor Windows/386 2.x running) (obsolete--see note) FFh Windows/386 2.x running AL = anything else AL = Windows major version number >= 3 AH = Windows minor version number
Notes: INT 2F/AH=16h comprises an API for non-Windows programs (DOS device drivers, TSRs, and applications) to cooperate with multitasking Windows/386 2.x and Windows 3.x and higher enhanced mode.. Certain calls are also supported in the Microsoft 80286 DOS extender in Windows standard mode. This function served as the installation check and AX=1610h served to get the driver entry point for XMS version 1, which is now obsolete. Use AX=4300h and AX=4310h instead. Windows95 reports version 4.00, Windows95B reports version 4.03
See Also: AX=160Ah - AX=1610h - AX=4300h - AX=4680h
Index:
Installation check;XMS version 1
Category: Windows - Int 2Fh - @
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