Int 20/Vx=0048h

Microsoft Windows - PERF - VxD SERVICES

VxD = 0048h

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 01308)
Values for PERF (VxD ID 0048h) service number:
00h    get version.
Return:
CF clear
EAX = version (AH = major, AL = minor)
01h    "PERF_Server_Register".
(creates/sets a registry key for the server)
02h    "PERF_Server_Deregister".
End performance monitoring (deletes registry key for server)
03h    "PERF_Server_Add_Stat".
Start performance monitoring (creates/sets a registry key)
04h    "PERF_Server_Remove_Stat".
End performance monitoring (deletes registry key)

See Also: #01307 - #01311 - #01309

Category: Windows - Int 20h - M

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