Problem solved
The DMR softare for the DM-5R, you click the tab for device, them comm port and it says comport 1. No other choices, got choice on the speed but not the comport. Checking device mgr in windows, take a notice of comport, then go back to the DM-5r software, and just type in comX, what ever com port you want, and the software uses that comport. I thought the software had choices available for the comports available. Just type in what you want and the software works.