'Pc Supervisor', and 'Portinator'

Pc Supervisor

PC Supervisor is a free program that helps you to put restrictions on users Windows XP accounts, in order to restrict them from accessing specific features.

http://nawrasgeorgy.googlepages.com/

Portinator

Portinator is a Windows command line utility to monitor local network port usage for changes. By setting a baseline and running Portinator at various intervals, the user can be notified by email or view a log file of any changes to network port usage on that machine. Portinator has several options to aid in reducing noisy emails. Portinator uses md5 checksums to help in identifying/monitoring applications using ports (can be useful in identifying .exe changes such as Trojans).

http://opensource.w2k.vt.edu/portinator.php