Hi Roland
I am on windows 8.1
I have tried the uninstall and install routine on RRCmicro 1.8.0.0 version.
The COM ports did display on the RRCMicro at one time but I was never able to get the ARCP2000 to work on any of the COM port selections from that program. Many reinstalls, and restarts, and configuration T&E the COM port list on the MicroRRC program went blank. Incidentally, ARCP2000 is asking for license registration number again such as it does when first started which I suspect means a registry error for that program. Don't know if it has any relation to the blank COM port list on RRCMicro
Don
KB5VP