>Just to pick bones, 'cause this just confused someone here, port numbers >can go from 0-65535, although I'm not sure if 0 is actually valid.
Indeed so. Port numbers also have certain assigned meanings over the Internet, though within the context of a customer computing environment numbers above 1023 may particularly be used as needed. See: http://www.iana.org/assignments/port-numbers for defined port numbers. (Note that ADSM/TSM does not formally define any for itself in the world scope of things. Indeed, TSM's customary port numbers, such as 1501, are internationally defined for other purposes. In unusual contexts, this may cause a non-TSM application to attempt interact with a TSM server on a given port, resulting in an interesting protocol mismatch. Hopefully, such an application would not keep trying.) Richard Sims