I do not get warned about changing the filename extension, in step 3. End result being when I click OK to save changes in step 4, I get a invalid file path dialog box. I'm stuck?

With the release of RCv3.01 you do not have to follow those steps. Please put the target line back to its original state:"c:program filesrcv30rcv3.exe"Please download rcv3.01 from here:http://www.jdtllc.com/v3/rcv301.zipUnzip the contents into your Radar Contact folder.Change your target line in your RCv3 shortcut to this:"c:program filesrcv30rcv3.exe" /realtime