SVN (Score 1)

Try the following setup for version control: Server: Subversion + Apache httpd + mod_dav_svn + mod_dav_fs Non-developers on Windows: Tortoise SVN Developers: your-favourite-IDE-here or svn commandline tools It really does not matter what format the documents are from the version control point of view (diffs may be difficult with binary), but ofcourse simple text-based formats (pure text, latex, html, docbook) are better than binary (MS Word, OpenOffice). However, habits are hard to change so why not first begin with proper version control and only after that is fully implemented and loved by all, start moving away from MS Office. One step at a time.