INT 15 - DESQview/X 1.02 - DVDOS4GX.DVR - ???
        AX = BFDEh
        BX = 0008h
        CX = segment of ???
        DS = ???
Return: BX = status
            0000h successful
                AL = ??? (80h or C0h)
                DX = ??? (0603h) if AL=C0h
            0001h failed
                AX = 0000h
Note:   called by DOS4GW.EXE