I found a MS KB article about the registry modification, however I am not sure it will work so I didn't want to post it...
If you do this... make sure you backup your current registry.
The second key that is listed may be missing or corrupt or may not contain the value:
{228D9A81-C302-11cf-9AA4-00AA004A5691}
If the HKEY_CLASSES_ROOT\CLSID\{080d0d78-f421-11d0-a36e-00c04fb950dc} key is missing or damaged, add the following lines to a text file, rename it with a .reg extension, and then import it to your registry".