Accurate Network Monitor 1.31 (by HHD Software)
Network Monitor - ip packet sniffing, monitoring protocol analyzer software tool

Network Analysis and Troubleshooting PRO5.5 (by Javvin Company)
Network traffic monitor, packet analyzer, protocol decoder

Network Traffic Monitor and Analyzer PRO5.0 (by Javvin Company)
Network traffic monitor, packet analyzer, protocol decoder

Sniff - O - Matic 1.07 (by Kwakkelflap)
Sniff - O - Matic is a network protocol analyzer and packet sniffer.

Network Troubleshooting Analyzer 6.3 (by Javvin Company)
Affordable and easy to use packet analyzer, protocol decoder & traffic monitor

Network Troubleshooting Analyzer 5.0 (by Javvin Company)
Affordable and easy to use packet analyzer, protocol decoder & traffic monitor

Network Protocol Packet Analyzer pro 5.0 (by Javvin Company)
Affordable and easy to use packet analyzer, protocol decoder & traffic monitor

Sniff-em Packet sniffer 1.12 (by YASC LTD)
Sniff'em 1.12 is a Windows based allround Packet sniffer and Network analyzer.

Serial Monitor 4.10 (by HHD Software)
Software serial port monitor Rs232 com sniffer with protocol logger and analyzer

Free Serial Port Monitor 3.31 (by HHD Software)
Free Serial Port Monitor, RS232 Com Software Sniffer and Communication Analyzer

Netoscope 1.6 (by Basta Computing, Inc.)
Netoscope: Internet server monitor.

The Dude 2.1 (by MikroTik)
The Dude will layout your network on a map and will monitor services of devices

Sniff-em Packet sniffer 1.12 (by YASC LTD)
Sniff'em 1.12 is a Windows based allround Packet sniffer and Network analyzer.

SNMPTest 1.7 (by Noel Danjou)
Query and monitor any SNMP-compatible device

MailMonitor 1.6.3 (by DigiArch.org)
If you have mail problems, MailMonitor shows you what's going on at port level.