Found this in one of my help folders I keep....
Sometimes you uninstall programs but their listing remains in Add/Remove Programs. This happens most often when you either delete the program without going through the uninstall procedure, you delete it without going through Add/Remove, or the program is just persistent. While several shareware programs exist to purge your Add/Remove list, you can do it yourself by editing the Registry. Go to Start/Run, type REGEDIT in the box to open the Registry Editor, and navigate down the left pane to HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows \ CurrentVersion \ Uninstall. Delete the unwanted listing(s), close the Editor, and reboot. Don't delete the wrong keys!