there is an issue that the MechRC software & USB dongle installation packages as supplied on the CD do not support Windows 7 64bit.
Issue: The MechRC Commander software installation will not complete.
Solution: Open this link: http://www.mechrc.com/downloads/mechrc.zip
Then open the zip file (if it does not open automatically) and double click the mechrc.reg file inside it to add the required entries into the computer’s registry (click ‘yes’ when prompted). Then install the MechRC Commander Software installation package from the CD.
Issue: The USB dongle does not have an associated COM port available in the MechRC Commander software when plugged in.
Solution: Download the latest version of the USB dongle driver installation file:
Double click the file to install the latest drivers on the machine (following all on screen installation prompts). Restart the MechRC Commander software.