Int 2F Fn 1612  U - Ms-dos 7 Kernel - Get ???                              [D]

   AX = 1612h

Return: AX = 0000h if supported
       ES:BX -> ??? data (see #2328)

Note:  called by VTD.VXD

See Also: AX=160Fh,AX=1611h,AX=1613h

Format of DOS7 ??? kernel data:
Offset Size    Description (Table 2328)
 00h   WORD    ??? (0001h)
 02h   DWORD   -> ??? function (call with DS=high word of this field)
       the indicated function vectors through the INT 13 hook at
         0070h:00B4h and then forces the A20 gate open
   ???