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Call VTD.386/VTD.VXD entry point with

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Data:
AX = function number
0000h get VTD version number
Return: CF - clear
  AH = major version
  AL = minor version
0100h get current clock tick time
Return: EDX:EAX = clock tick time in 840ns units since Windows was started
0101h get current system time in milliseconds
Return: EAX = time in milliseconds that Windows has been  running
0102h get current virtual machine time
Return: EAX = cumulative amount of time the virtual machine has been active, in milliseconds
Note: This entry point should only be called directly when TOOLHELP.DLL TimerCount() cannot be called.
See Also: #01268,#01270,#01269 at INT 20"Windows"