I used to use several years ago a product called system mechanic (an early Version) when I was using win xp. I thought it worked well, then I purchased a newer version 3 or 4 years ago and they had changed it a great deal and I didnt think it worked as well, in fact I came to the conclusion it was telling me I had problems when I didnt.

I now have win 7, having been using it over a year now and I have read from microsoft engineers that you should never use products like these. They say win 7 doesnt need any aftermarket system tools to keep the system running topnotch. I am curious what your guys experiences have been and if you think these things are a good idea?