There is a short and easy way to export images in full quality from Microsoft Word 2007 and 2010 (and possibly all other versions) by saving your word document as a HTML Document. In the export folder, you will find the image files.
- Open your Word-Document
- Click the start symbol and chose Save as
- Chose Other Formats
- Now Chose Website (*.htm, *.html)
- Hit the save button and you're done
Word will now automatically create a folder with images that are included in your original document. Please not, that it won't restore any compression but it will be the best possible quality that you can get from the file.