Anyone use one or more of the free system integrity checkers around like Watcher, Sentinel, Installspy, Spy-the-spy etc? I'm wondering if you can advise on what areas/folders you protect with these programs? I'm looking for more than just the most basic areas that many of the programs monitor by default. I would like to cover as many areas as possible that malware could alter, delete, hide or install into, but I just don't know enough about Windows and malware to figure it out on my own. Thanks very much for any help.