1)   X-NetStat Professional 5.51
X-NetStat Professional shows your current Internet and network connections (addresses, ports used, traffic, age, process EXE, status). Includes IP-Lookup Tools, Network Statistics, Remote Access Server, Rules, Port Database. It's Internet radar.

 2)   Open Ports Scanner 2.3
This utility allows you to view open TCP and UDP ports on your computer, view the underlying software that opens these ports and export open ports information into a text file. You may even close open connections from within this application.

 3)   IsItUp Network Monitor 6.36
IsItUp Network Monitor is a server, website, port, and email system monitor. It monitors multiple IP devices, websites, servers and ports with alerts via email or pager; graphs. Web content check; performance stats and error log, runs as a service.