INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
        AX = FB42h
        BX = 001Bh
        CX = selector of DPMILOAD data (see AX=FB42h/BX=0005h)
        DX = offset of ???
Return: DX = status (see also AX=FB42h/BX=0004h)
            0000h successful
                BX = selector for ???
                CX = selector for ???
            0002h invalid selector