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The Sysinternals web site was created in 1996 by Mark Russinovich and Bryce Cogswell to host their advanced system utilities and technical information. Microsoft acquired Sysinternals in July, 2006. Whether you’re an IT Pro or a developer, you’ll find Sysinternals utilities to help you manage, troubleshoot and diagnose your Windows systems and applications. If you have a question about a tool or how to use them, please visit the Sysinternals Forum for answers and help from other users and our moderators.

Featured Resources



What's New (September 4th, 2007)

We’re excited to announce the release of Process Explorer v11.0, which introduces major startup and UI performance improvements, new columns and process details for Vista I/O priorities, memory priorities, and Address Space Layout Randomization (ASLR) DLL and executable attributes, an enhanced security properties page that shows raw SID values, fully asynchronous thread symbol resolution, integration with UAC, and more!

The September issue highlights Sysinternals PageDefrag utility for defragmenting your Paging and Registry files.

What's New (August 8th, 2007)

This update to Tcpview adds support for Vista, including IPv6, and displays counts of active and connected endpoints in a status bar.

This release adds XML as a new export format, includes performance optimizations, and fixes a number of minor bugs.

PsExec v1.85 adds a new switch that takes advantage of new memory and I/O priorities on Vista, -background, for running processes with low CPU, memory and I/O priority.

Check out the August issue of TechNet Magazine for an article by Lance Whitney on Sysinternals BgInfo utility.

Check out Mark's new blog where he dives into a mysterious conflict between Window’s File Explorer and E-Trust using advanced techniques with Sysinternals Process Monitor.

What's New (July 24th, 2007)

This release of Process Monitor, an advanced system and application monitoring utility, adds a number of major enhancements that include improved scalability and performance, a destructive filtering option, a revamped process tree dialog that adds process lifetime graphs, position-sensitive context-menu filter entries, integration of the stack trace dialog with source code stores, faster stack tracing, the ability to load 32-bit log files on 64-bit Windows, and more.

What's New (July 9th, 2007)

We’re excited to announce the release of Sysinternals AD Explorer, a powerful Active Directory viewer and editor that includes advanced navigation and search features, plus an AD snapshot facility that enables off-line AD viewing and differential comparison.

This Autoruns update adds a number of additional locations that can be configured to auto-start software during boot and logon and runs as standard user on Windows Vista by default, allowing administrators to elevate, if desired, by using a new menu option.

What's New Archive

Sysinternals Video Library
Sysinternals Video Library

We're pleased to announce The Sysinternals Video Library, a set of six DVDs that cover essential Windows troubleshooting topics. Each video is personally presented by Mark Russinovich and David Solomon. The complete set is available for order at a discounted price and the first video, Tour of the Sysinternals Tools, is free for download.

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