Network Eagle Monitor Pro 4.4 (by Effective Systems Ltd.)
Network Eagle: Powerful network monitoring and alerting software.

Network Eagle Monitor 4.3 (by Effective Systems Ltd.)
Network Eagle: Powerful network monitoring and alerting software.

Network Eagle Monitor Pro 4.4 (by Effective Systems Ltd.)
Network Eagle: Powerful network monitoring and alerting software.

Network Eagle Monitor 4.3 (by Effective Systems Ltd.)
Network Eagle: Powerful network monitoring and alerting software.

GFI Network Server Monitor 7 (by GFI Software)
Monitors your network & servers for failures and fixes them automatically.

IPCheck Server Monitor 5.3.1.586 (by Paessler AG)
Server Uptime/Downtime Monitor - alerts staff if a server or network is down

Utility Ping 2.1.2 (by QKsoft)
Utility Ping -professional ping utility to check network connection

CheckSpace 3.3.0 (by Timo Kosiol - Softwareconsulting)
Monitor disk/directories, event log, applications, Watson events, CPU, websites

NetStatus 2.3.1.0 (by OTO Software, Inc.)
NetStatus is a network monitoring tool with a 100% web interface.

Alchemy Network Monitor 8.0 (by M.I.S.Helpers)
Monitors your LAN servers availability and performance, alerts on failures

Alchemy Network Monitor PRO 8.0 (by M.I.S.Helpers)
Monitors your LAN servers availability and performance, alerts on failures

IsItUp Network Monitor 4.9.8.1 (by Taro Software Inc.)
IsItUp network monitor for servers, ports, websites, email w/ alerts & graphs

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

The Dude 1.1 (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 1.03 (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.