)
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)
SeeAlso: #01307,#01311,#01309