Need a spot of help myself. Security Center service will not start on an old Server 2003 box. Error 126: The specified module could not be found. After a bit of digging, the registry is pointing to %systemroot%\system32\wscsvc.dll however the file does not exist in this location. Any way I can restore a copy of the file to there from, say, another Server 2003 box or the install CD? I have access to both.