Yes, if you restore the registry with WinRescue (for more information about WinRescue go to http://superwin.com/rescuemenu.htm). Actually, RegVac (for more information about RegVac go to http://superwin.com/regvac.htm) can backup and restore the registry in the Expert mode. Another option is to use an XP Restore Point. Since RegVac only changes the registry, restoring a backup of the registry made before RegVac was run will restore any and all changes made using RegVac.