Int 2F/AX=1607h/BX=0010h

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MS Windows 3.1 - BLOCKDEV VIRTUAL HARD DISK DEVICE API

AX = 1607h
BX = 0010h (VxD identifier of "BLOCKDEV")
CX = function
0001h starting FastDisk compatibility tests
0002h ending FastDisk compatibility tests
0003h check if FastDisk installation allowed

Return:
CX = 0000h if allowed

Note: This interface is called by the Windows FastDisk driver (such as WDCTRL) when it thinks that the INT 13h handler immediately below IO.SYS's INT 13h code is not in ROM; it should be supported by any program which hooks itself underneath IO.SYS's INT 13h code with INT 2F/AH=13h

See Also: AX=1607h/BX=0014h - INT 2F/AH=13h

Category: Windows - Int 2Fh - M

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