INT 2F - Novell NetWare - TBMI v2.0, shell v3.01d - INSTALLATION CHECK???
        AX = 7AFFh
        BX = 0001h
        CX = 4E65h ("Ne")
        DX = 7457h ("tW")
Return: AL = FFh if installed
            CX = ???  (8000h)
            SI = ??? (or -> ???) (0002h)
            ES:DI -> IPX far call handler
            ES:DX -> 6-byte data area ???