Can i use Protect from the TotalCMS stand alone or do i have to use Page Protect for projects outside of TotalCMS?
Total CMS is a free download. All of its stacks will work for the 30 day free trial. After that, you will need to purchase a license.
If you like how Protect works, then you can have a look at my Page Safe stack. http://joeworkman.net/rapidweaver/stacks/page-safe