I look at all the posts on dsdplus fastlane ,and try some of the post solutions. I also followed the note text,that explained how to single dongle monitoring. I am using a sdrplay rsp 1a. I also add in the serial # in fmpp-cc.bat. So the note texts read,to use a single device,run 1R bat file to start dsd and then run sdrplay fmpp-cc.bat . when I do,a window pop up. It reads, Required file msvcr90.dll not found in current working folder. also try delete and reloading program. I had no issues using dsdplus with sdrplay rsp1A using sdruno. It only when I try updating to dsdplus fastlane.