WHich version of LW are you talking about uninstalling. The new installer version doesn't use the add/remove control panel! See
http://www.gnutellaforums.com/showth...threadid=40838
If you wanted to install a new version, if your previous version was LW 4.4 or later, then LW will uninstall it during the installation process. But for earlier versions, see the above link. The new versions uninstaller can be found in the LW program folder or go to Start menu>Programs>LW>Uninstall.