Hi, almost all my life I have been using WinDiff to find differences between files in text format and folder too. I mean that as in finding differences between two files outside of any application. Within an application there may be other options. Say Visual source safe has the Show differences option to find differences between repository version and the local copy. I am talking atbou comparing just two text files at the OS level. WinDiff has been sufficient for me to work with so far. But now I am curious. What other tool(S) are available in the market that rival WinDiff, free or otherwise?