You may be able to navigate to the CS5 plug-ins directory and add a shortcut for 4 Nik and Topaz Adjust. If that does not work, try reinstalling the plug-ins. For Topaz, if you are running the latest version of Topaz Adjust, there may be a "Topaz Software Manager" program on your pc that will step you through the uninstall/reinstall process. If not, look for a file with a name something like "topaz_adjust.exe" and run that. You may have to reenter your software key.