windiff and its helper ( _(windiff)_와 그 보조 도구들 )

windiff itself and source code from its creator
http://www.grigsoft.com/download-windiff.htm
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obsolete frontend
http://www.codeproject.com/Articles/7249/Windiff-Helper-Tool
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better frontend
http://www.codeproject.com/Articles/779/A-better-front-end-to-WinDiff
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