Repair My Word is a freeware tool which recovers data from Microsoft Word files that are corrupt (unreadable etc), its only 1.5mb in terms of size and is portable. It recovers that data of a word file that you open in it and then allows you to save it as a seperate file aswell, some common errors that can be fixed by Repair my Word are:

• “The document name or path is not valid. Try these suggestions. Check the file permissions for the document or drive. Use the File Open dialog box to locate the document.”
• “Word cannot open the document.”
• “Word cannot open the document: user does not have access privileges.”
• When you attempt to open a Microsoft Word 97 document into Microsoft Word version 6.x or 7.x, the document contains garbage characters.