Int 2F Fn 1684  - Ms Windows - Vbilld - Get Api Entry Point                [W]

   AX = 1684h
   BX = 8888h (virtual device ID for VbillD device) (see #2329)
   ES:DI = 0000h:0000h

Return: ES:DI -> VxD API entry point (see #2403)
         0000h:0000h if the VxD does not support an API

(Table 2403)
Call VbillD entry point with:
   AX = function
       0001h set reverse video
       0002h set normal video

Return: ???

See Also: #2402