SoftPerfect Network Scanner 

A free multithreaded IP, SNMP and NetBIOS scanner. Both system administrators and users can use this software. It pings computers, scans for listening TCP ports and shows what types of resources are shared on a network (including system and hidden).
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FireDaemon 

FireDaemon lets you install and run any native Win32/64-bit application or script as a Windows service. Among the key features is easy configuration via GUI or XML, service monitoring, low memory footprint, fault tolerance and high availability.
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Essential NetTools 

Essential NetTools is a useful tool for diagnosing networks and monitoring your computer's network connections. It's a Swiss Army knife for everyone interested in a set of powerful network tools for everyday use.
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Engineers Edition 

An awesome collection of over 38 Networking Tools. From graphing Bandwidth Monitors to Network Discovery tools to Cisco Router tools to a Network Monitor with email alerts, to a Full MIB Browser. As you can see from its size, this toolset is LOADED.
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DynSite 

DynSite automatically updates your dynamic IP address each time it changes on one or many dynamic DNS or by email. This allows anyone to connect to the servers running on your own computer using a fully qualified domain name.
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Advanced Host Monitor 

HostMonitor is a system management tool that continuously monitors servers availability and performance. It has 55 test methods, 25 alert methods, highly flexible report and log manager. Package includes Log Analyzer, Web Service and other utilities.
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