Like the title said, Docvert is a webservice software designed to convert Microsoft Word document files (*.doc) to OASIS OpenDocument format (*.odt). It uses a simple REST-style interface, and it’s released under the LGPL.
OpenDocument requires PHP 5.0 with ZLIB, XSL and GD extension with OpenOffice 2.0 or Abiword with OpenDocument export plugin. You might also need libwmf0.2-7+ and librsvg2-2+, to convert WMF and SVG files.
Finally, Docvert is easy to integrate into other project as it use a simple REST-style interface. This means that you can host Docvert webservice software and provide a service to convert Microsoft Word documents file to OpenDocument whether for free or otherwise.