Diff Doc is a file compare software which allows you to compare files specifically Microsoft office word, excel and power points or slide show. This file comparison software is free for windows version and they give you the registry key after you download the software.

You can also compare folders with ‘Diff Doc’ and compare files of all types not just MS Word/Excel / PowerPoint( 2003 or 2007) , PDF, RTF, Text, HTML, XML, Word perfect.. I experimented with this file comparison utility on couple of word documents and xml files which gave a very positive results.

How it works ?

Select the original document and the modified documents in 2 different panes and hit compare. It compare files and the result is shown in the report pane. The new data is shown in blue and deleted lines are shown in red, thus giving you a clear idea.So anytime you modify your docs and want to find the changes just use this file compare utility and send the email to the person ( Yes the report can be directly sent as an email ).

Features:

• Its free and easy to use file comparison program.
• Compares almost all the files including PDF.
• Enhanced options for file comparison for file types like PDF,XML and others
• However you are limited to compare just two files
• Difference shown clearly with colors.

Its pretty much fun to explore so if you are looking for a free tool and you are a windows user , this will be best bet for you.