Don't forget to consider the new breed of Distributed CVSs. They enable some more advanced workflows and those who try them rave about them. I unfortunately have not had a chance to use them in anger, only toying so far, but I like what I read.

Mercurial by all accounts has a slightly nicer Windows experience. The main other one is Git.

If you investigate them, just remember that you're not in Kansas, anymore. Things that look similar to concepts you're familiar with from a centralised VCS require a fundamentally different mindset to understand properly, or you'll get yourself in a pickle.


Oh, and to second JB, yes, you do need to switch. VSS is not a product you can rely on, particularly for team development. Unless you like your source control system destroying all your source code.