Int 20  P - Microsoft Windows - Int13 - Vxd Services                       [W]

   VxD = 0020h

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",#0961,#1032

(Table 0984)
Values for Int13 (VxD ID 0020h) service number:
 00h   get version
 01h   device registered
 02h   translate VM interrupt
 03h   hooking BIOS interrupt
 04h   unhooking BIOS interrupt

See Also: #0983,#0985