Kunkel, while your technique will work, there is a much better way to do it.
If you really only want to show lnk and exe, then the way to do it is go to Search Folders, select only the ones you want, and then edit them to say they should only return exe and lnk files, by specifying Optional file extension restrictions of: exe;lnk
This is much more efficient than handling it via scores, as you are currently doing.
Score adjustments are very useful if you still want other files to show but you want them to have lower scores so they show up lower in list. But if you really don't want other extensions to show, you are much better served using the file extension restrictions in each Search Folder configuration.