DiffDog Standard Edition 

Altova DiffDog 2005 Standard Edition is the dedicated differencing utility for developers and power users. This easy, powerful synchronization tool quickly compares files and folders then highlights differences and merges content via an elegant GUI.
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DiffDog Professional Edition 

Altova DiffDog 2005 Professional Edition is the developer's dedicated differencing utility. This unique XML-aware synchronization tool quickly compares files and directories then highlights differences and merges content via an easy visual interface.
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Code Historian 

Code Historian performs file-differencing and code analysis, and assists with code reviews in SourceSafe, Perforce, or CVS. No server installation. Integrates with Visual Studio 6.0, .NET, and 2003. Also available in Explorer and on command-line.
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