1)   KaraFun Karaoke Player 1.01
KaraFun is a free karaoke player and editor for windows. Create your own karaoke songs from MP3 music files with the full featured editor. KaraFun plays standard midi KAR, KFN and CDG + MP3 files. Voice recording, realtime pitch and tempo change...

 2)   YoGen Vocal Remover 3.0
A stand-alone program that tries to remove any monophonic components from stereo sounds.

 3)   DART Karaoke Studio CD+G 1.4.9cdgp
Make and Play Karaoke on your computer. Rip & Burn CD+G Karaoke CDs. Suppress the Main Vocal from Stereo Recordings. Synchronize Lyrics with Music. Sing-Along and Record your Performance. Full Screen Playback Display.