If you work with the free PHP based MediaWiki software then you may want to check out this add-in for Microsoft Word:

Allows you to save your Microsoft Office Word 2007 and 2010 documents straight into MediaWiki.

  • Supported Operating Systems:Windows 7;Windows Vista;Windows XP and Microsoft Office Word 2007 or above

Download the Office 2007/2010 Word Add-In for MediaWiki