Just to echo Nancy points....

Regclean will hose NT. I don't really trust apps like regclean anyway. As a developer, I don't think there is any way to avoid having to totally re-do your machine every 6 months. Between registering and unregistering components, different software packages, etc - a total dump and reload is what it takes....especially on NT.

>Over a period of time the registry may begin to contain corrupted, unused and/or unnecessary keys. RegClean is a program designed to remove these.
>
>Go to the Microsoft site and search for Knowledge Base article Q147769. It contains information on using the program, as well as a link to download it.