Can u try with this option. For sure this will work. :-)

• • When a file has the ".doc" file name extension, but the content is a plain text file or another kind of file that is not a Microsoft Word binary file, and that file is opened in Microsoft Word, you may receive the following error message up to three times before Microsoft Office Word successfully opens the file: Word cannot start the converter mswrd632
    
    
    
    To resolve this issue, an affected user can unregister the mswrd632 converter by editing the registry as follows:
    1. Click Start, click Run, type regedit, and then click OK.
    2. Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Text Converters\Import\MSWord6.wpc
    3. On the Edit menu, click Delete.
    4. Click Yes.
    5. Exit Registry Editor.
    This change will effectively unregister the converter and disable it for third-party applications and for Microsoft Office. Microsoft Office will use its own text converters to open these kinds of files.