Windows Sysinternals is a part of the Microsoft TechNet website which offers technical resources and utilities to manage, diagnose, troubleshoot, and monitor a Microsoft Windows environment.
The Sysinternals web site was created by Mark Russinovich and Bryce Cogswell to host their advanced system utilities and technical information.
The website featured several freeware tools that aid in the adminstration of local and remote Windows systems.
Sysinternals is now part of the Microsoft TechNet website.