Is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.
http://winmerge.org/
Use Diff Tools to Compare Text Files and Spot the Differences
http://www.softpedia.com/blog/use-diff-tools-to-compare-text-files-and-spot-the-differences-504794.shtml
http://winmerge.org/
Use Diff Tools to Compare Text Files and Spot the Differences
http://www.softpedia.com/blog/use-diff-tools-to-compare-text-files-and-spot-the-differences-504794.shtml