MERCUR Messaging 2005 (by atrium software international)
Versatile messaging server for Windows NT, 2000 and XP platforms

iNetQuery 2005 (by atrium software international)
Internet Query tool with powerful query and network analysis features

CARTHAGO Groupware 2005 (by atrium software international)
Webmail client for Windows with email, contact, appointment and task managment

CAMELOT Security 2005 (by atrium software international)
Full featured server side messaging firewall that is designed to fight SPAM

iNetQuery 2005 (by atrium software international)
Internet Query tool with powerful query and network analysis features

X-NetStat Professional 5.49 (by Fresh Software)
Monitor your Internet and network connections. With IP-Lookup tools & more.

X-NetStat 5.1 (by Fresh Software)
Monitor your network and Internet connections and the programs behind them.

NetStat Agent 1.5 (by Flexbyte Software)
A powerful TCP/IP troubleshooting tool for diagnosing and monitoring network

Active Whois Browser 3.0 (by John Security)
Browse all information for an IP address or domain name with a single click!

SmartWhois 4.1 (by TamoSoft)
A program for obtaining information about domains, hostnames and ip addresses

Active Network Monitor 2.01 (by SmartLine Inc.)
The centralized administrative tool that gathers information from the network

Essential NetTools 4.0 (by TamoSoft)
A set of useful tools for diagnising network problems and monitoring connections

Advanced Netstat 1.0.5 (by GroundZero Security)
Ever wanted to find out which program uses that strange udp or tcp port ?

SoftPerfect Network Protocol Analyzer 2.3 (by SoftPerfect Research)
A network analyzer (sniffer). It analyzes the data passing through your network.

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.