[Colin F]

Originally Posted by lordofgun

Or how about putting a message like this on the forums...

When you post your code, it becomes public, open-source material, and others are free to modify/re-release the code as they see fit.

Make them agree to it before the post will appear on the website.

As Chris already said, most things released are automatically placed under copyright.
See also this link: http://www.intellectual-property.gov...protection.htm