Side-by-side diff viewer, editor and merge preparer
Monitors a number of web pages for changes.
File/folder utility useful for comparing/mirroring directories
Launch an external diff tool like WinMerge in Eclipse
Yet Another Diff Tool
regutils - Win9x registry tools in Unix C & INI file tools in Perl
please use open source- htp://code.google.com/p/off-dup-finder/