j.richardson--
microsoft believe that this site may cause damage in opening your files to general access
Something wrong there. http://ccollomb.free.fr/unlocker/ works fine for me and is a well regarded program, though there is a screenshot of an error message at the top to show the problem Unlocker should fix.
Have you looked into MSCONFIG to see if that program is listed as running?
Or used Process Explorer http://technet.microsoft.com/en-us/s.../bb896653.aspx
Perhaps you have malware?