I purchases a Quatech 4 port usb to serial port adapter. I need help in attaching the ports under jnos/dos ... the attach sequence requires a port address/vector,i.e., attach asy 3f8 4 etc. I'm so far unsuccessful in learning the addresses of the 4 different ports. Windows has assigned comm ports 5,6,7, and 8. Any help appreciated. 73..Bob/wh6io