It would be really nice if the WWGM would register 3rd party applications automatically, or if PTC could provide us with the information on how to do it via command line. They have the whole thing set up so that updates to service patches can be done seamlessly, but WWGM doesn't register the applications.
Having to go around to every client machine after a service patch update that comes out every month seems a bit much, and effectively makes the service patches unusable.