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

AX = 1684h
BX = 0489h (virtual device ID for VIP device) (see #2329)
ES:DI = 0000h:0000h

Return: ES:DI -> VxD API entry point
0000h:0000h if the VxD does not support API in current mode

See Also: AX=1684h"DEVICE API",INT 20"Windows"