The rK DemoWatcher is a handy tool for easy access to UT2004 and UT3 demos. Demos are recorded matches, for example from tournaments, that other gamers can replay. So you can follow the matches of professional players or create an archive of your own.rK DemoWatcher registers the filetype extensions of UT demos and makes it possible to start them by doubleclick. It also takes care of the cachefile problem. Missing files are downloaded automatically from the internet.