Hi, I have an Icom 40S that needs a few more channels programmed into it. I have Windows 7 32 bit installed and no RS 232 ports fitted only Usb ports, I also have DosBox installed as the program EX2118 #2 requires Dos to run. Here is my problem, I get ( Err: Cannot access RS232c port) I have tried various drivers and emulators to connect with the radio via Icoms genuine OPC-478UC (I used this as I have a Icom 41W,worth a shot!)cabling and associated drivers even though the correct cable is the OPC-478 which is a RS232 serial cable. Your help would be appreciated.