ServersCheck STANDARD Edition 

ServersCheck is a software application for round-the-clock monitoring, reporting and alerting on the availability of systems. It includes real-time HTML reports, graphs and Service Level details. ServersCheck can be administrated through a browser.
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TaskInfo 

TaskInfo for Win9x/ME/NT/2k/XP is Task Manager & System Info, Alerts. It shows in real time OS Wide info, for all processes and threads -- CPU%, Path, open files, memory, DLLs, command line, environment vars, ... Run, terminate, Reboot.
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EndTask Pro 

A UNIQUE pop-up blocker, task manager, System/Internet connection monitor and more! Avoid killing the pop-ups you want. Pop-ups are hidden, you can take a peek and decide whether to show them, or wait and they will be blocked after a few seconds.
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ServiceKeeper 

Administration, Monitoring and Recovery of any networked resources (Windows Services, TCP/IP Services, web servers, routers, file systems, Process memory and CPU usage, Event Log, ...) and notifcation in case of downtime (email, SMS, phone call, ...)
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PCSummarizer 2005 

Shows a summary of critical system information right on your screen! Information that is shown is customizable. Display can be on top of other windows, or not.
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AdventNet ManageEngine OpUtils 

The AdventNet ManageEngine OpUtils is a comprehensive set of 40+ unique system and network monitoring tools. This web-based software helps IT administrators monitor, diagnose and troubleshoot their IT resources. OpUtils is web-based and very quick.
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