Hey Mark...looks like Maciep already has you taken care of, but just another quick tip. i would recommend reading from the registry to get the correct file path.

$file = ReadValue("HKEY_CLASSES_ROOT\CLSID\{238F6F83-B8B4-11CF-8771-00A024541EE3}\InprocServer32","")

hard coding file paths is just a small pet peeve of mine.