shipley.c:I think you'd be able to set up something yourself that would be no additional license cost with WSUS 3.0 and NAGIOS / WireShark. Seems like a lot of money to me for the service
WSUS, I get. But Nagios / Wireshark? I'm not sure how exactly that helps him monitor updates.
Nagios' native plugins can monitor whether a service is running. But I suppose you could get creative and write a tool that looks deeper inside Window's "guts" and finds some sort of a status (via a counter?) that tells whether or not an update is needed.
(I've seen Nagios plugins to do this for Debian packages, but not for Windows)
I'm totally lost on how Wireshark might be a fit...