Sysinternals Suite (AKA: Windows Sysinternals Suite) is a tool set originally developed by Winternals company for internal use, aimed at resolving all sorts of problems that engineers might encounter in their usual work. Later it was placed on the Internet for free downloads, and some tools also opened source. Till today, Sysinternals has long been popular with high praise in the IT industry.

Sometimes we need more than one tool to detect and solve the related problems of the network or computer, Net Tools is a comprehensive set of host monitoring, network scanning, security, administration tools and much more, all of which are very easy to use, portable and free.

XPSysPad is a very practical and interesting toolkit, it has almost got all the default small programs of Microsoft operation system (especially for xp) together, according to the official says the total number of contained applets is over 250 now!