I have a Kenwood Th-F6A and I am using W7 64 bit. I know for sure the program is communicating with the radio because I can DL the current memories with any problems. I then following these instructions:
When done you have to import the file radionew.csv by clicking on Radio --> Import from File. The pop up window requests you to either mark or uncheck the checkbox at the different memory locations or select either all, nothing or inverse and click OK when you want to proceed with the import. Otherwise click at cancel. Save the import save the file as mynewradiodata.img using the File drop down menu. Upload the file to your radio using the Radio --> Upload to Radio Clone function. Enjoy the new settings of your radio!
And end up with the following error:
Thanks Joe N7QPP