Sweet, I was told I may need a new Serial/USB adapter and new driver. So I purchased one for $8 on Amazon and received it today. It came with a driver and I got it installed on my Windows 7 computer. With the newly installed driver and the new cable I was able to connect to the software CCShell-3. I successfully opened the original file that is matched to the DMOC 445 inverter. Next test is to see if I can make a change to the software and save it into the DMOC 445. I need to read how to do that with the program CCShell.