Ok, lets kick off this Windows thread, with the info thats suppose to be here.
(-:

http://www.shelldemon.net/
http://www.shellcity.net/

The above is mostly for Shells, Follow the Links at those pages to others, for reg hacks you really need to search your favorite search engine aka www.Google.com, because reg hacks are different for each OS.

Hope this helps get ppl interested.