Int 94  u - Media Vision PCm.com - Timer Control                           [s]

   AL = 10h
   SI = 8017h
   AH bit 7: set timer
   AH bit 6: timer active (timer turned off if clear)
   AH bits 5-0: timer number
   DX:CX = delay if AH bit 7 set (one-shot if DX bit 15 set)

Return: ???

See Also: AL=08h/SI=8017h