CS-RCS Pro 

Professional version control and software configuration management for Windows. Fully integrated with Windows Explorer and provides the most powerful and intuitive solution on the market today. Free for single users and open-source developers.
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CS-CVS 

CS-CVS is a CVS client for Windows aimed at both the professional as well as the novice user. With CS-CVS, the complicated setup and resource demanding maintenance of classical CVS clients is virtually gone.
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