System Monitor 0.5.0
Defrag, monitor email/connection, runs in system tray, easy to use.
License:Full, 19.99 to buy Size: 2416KB

Professional PLUS Edition 3.2
A collection of 34 Network Discovery, Monitoring and Management tools
License:Shareware, 695 to buy Size: 50557KB

MailDetective 2.0d
Monitor incoming and outgoing emails to expose employee Internet abuse
License:Shareware, 199 to buy Size: 3835KB