Int 20/Vx=0036h

Microsoft Windows - VFBACKUP - VxD SERVICES

VxD = 0036h

Note: The desired VxD and service number are identified by the data immediately following the INT 20 instruction, as in: INT 20h DW service number DW VxD identifier

See Also: INT 2F/AX=1684h"DEVICE API" - INT 30"Windows" - #01265 - #01340



(Table 01299)
Values for VFBACKUP (VxD ID 0036h) service number:
0000h  get version.
Return:
CF clear
EAX = version (AH = major, AL = minor)
0001h  "VFBACKUP_Lock_NEC"
0002h  "VFBACKUP_UnLock_NEC"
0003h  "VFBACKUP_Register_NEC"
0004h  "VFBACKUP_Register_VFD"
0005h  "VFBACKUP_Lock_All_Ports"

See Also: #01297 - #01300

Category: Windows - Int 20h - M

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