Don't Feel Bad, Microsoft Does It Too

Tom's Hardware Guide: Tom's Hard News

Caught, and there's no way to deny it. Microsoft has used pirated software to create sound files that come with Windows XP. Talk about getting caught red handed. Check out "Help\Tours\WindowsMediaPlayer\Audio\Wav" in your Windows installation directory and open the files with a hex editor. At the end, you'll see a signature of "Deepz0ne", a member of former cracking group "Radium". Pretty interesting stuff.