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

   VxD = 0498h

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 #2329)

See Also: INT 2F/AX=1684h"DEVICE API",INT 30"Windows",#0961,#1032

(Table 1023)
Values for Splitter (VxD ID 0498h) service number:
 00h   get Splitter version

   Return: CF clear
       EAX = version (00000001h)
 01h   ???
 02h   ???
 03h   hook/unhook VMM "hook device service" service
   EAX = request (0 = unhook, nonzero = hook)

   Return: if EAX nonzero on entry, Splitter's service 04h replaces VMM
         service 0090h; otherwise, default handler is restored
 04h   Splitter "hook device service" handler

See Also: #1022,#1024