AptDiff - Text File Comparison
AptDiff is a tool for visually comparing two text or binary files. With color coding you quickly view differences between two files, with convenient support for merging differences in either direction. AptDiff also supports exporting the side-by-side comparison of file differences to an HTML page for either publishing to the Web or simply for having a clean comparison of the two files. For rolling back, simply backup the files before you make changes. Color coding is fully customizable so you get the look that makes the most sense to you. I don't know if there's a size limit on comparing the files, but I tried two files at just under 1MB each and they opened with no problem. If you work with lots of text this is an invaluable tool for finding changes made between multiple document versions. [Windows 2k/XP/Vista $0.00]