http://www.gamefront.com/files/3814721/utwinamp_zip
It's supposed to play mp3 files while you play Unreal Tournament but I was having no luck getting it to do anything. It basically just sat there:

The 'help' file that came with it, which basically said nothing whatsoever other than "this is what it is" without explaining how it was supposed to do it, was no good either. I finally had to do a google on it to find some direction. There was a forum for it on BeyondUnreal.com that explained the issue...
...you need WinAmp to run the bloody thing!
I don't have WinAmp, I use Sonique. An outdated, largely unavailable music player (unless you know where to look) that's got a guhzillion different skins.
Like this very appropriate one:

Don't suppose anybody knows of a reliable mp3 player I can use while playing games or, at the very least, an effective way to trick the UTwinAmp to work?