After that you can restart the TS-Doctor and check if it's correctly registered to your name (Menu/Help/About). The tool will just copy the license file at the appropriate place. Download the file, execute it and select the license file that you have stored on harddisk. If your trial is expired the you can register your license file by drag and drop the license file the TS-Doctor shortcut you maybe have on your desktop or you can use the Windows file manager to do that.