It is a registry cleaner. Don't know if it is any good. Here is one review

http://www.download.com/Error-Nuker/3000-2094-10348363.html?tag=WinTracking&part=rss&subj=newwin

(though not the latest version download, I think; that is available from

 http://www.errornuker.com/info/01.php?hop=judy101 )

Although it advertises itself as completely free, it seems that you can scan the registry and fix some things for free, but otherwise after it has scanned and you ask it to fix, it tells you you have to buy. That kind of advertising does not attract me to this product

Here is one user's experience:

http://forums.techguy.org/t272896.html

Unless you are experienced with registry entries so that you can decide whether a proposed 'fix' is a good idea or not, I would not recommend that you use a registry cleaner. If you want to use such software, there are free ones around. If you do, make sure that you get one that makes backups and allows restore of anything it changes (Errornuker claims to do so). When I use one (rarely) it is regscrubXP, which is free

http://www.majorgeeks.com/download.php?det=2048

JRosenfeld,

Tks for your reply. Your input is of the type I was hoping for.

I did realize that it was a registry cleaner; I just needed some input about its reliability. I had not noticed that there would be a $cost when I got past the diag. part of the program. I guess I would have had to use the prog. then find out about the $charges. Tks again. I'll stay away from "error nuker" not because of the $cost but because of the unstated $cost.

Truly appreciate your input. AR