his role as an author, he is a regular contributor to TechNet Magazine and Windows IT Pro magazine (previously called Windows NT Magazine) on the subject of the Architecture of Windows 2000 and was co-author of Inside Windows 2000 (third edition). Russinovich is the author of many tools used by Windows NT and Windows 2000 kernel-mode programmers, and of the NTFS file system driver for DOS. Works In 1996, Russinovich discovered that altering two values in the Windows Registry of the Workstation edition of Windows NT 4.0 would change the installation so it was recognized as a Windows NT Server and allow the installation of Microsoft BackOffice products which were licensed only for the Server edition. The registry key values were guarded by a worker thread to detect tampering, and later a program called NT Tune was released to kill the monitor thread and change the values. Russinovich wrote LiveKD, a utility included with the book Inside Windows 2000. As of 2022, the utility is readily available to download. In 2005, Russinovich discovered the Sony rootkit in Sony DRM products. Its function was to prevent users from copying their media. In January 2006, Russinovich discovered a rootkit in Norton SystemWorks by Symantec. Symantec immediately removed the rootkit. He also analyzed the Windows Metafile vulnerability and concluded that it was not a deliberate backdoor. This possibility had been raised – although tentatively – by Steve Gibson after a cursory investigation of the nature of the exploit and its mechanism. Russinovich's novels Zero Day (foreword by Howard Schmidt) and Trojan Horse (foreword by Kevin Mitnick) were published by Thomas Dunne Books on March 15, 2011 and September 4, 2012. Both are in a series of popular techno-thrillers, that have attracted praise from industry insiders such as Mikko Hyppönen and Daniel Suarez. A short story, "Operation Desolation" was published just before Trojan Horse and takes place 1 year after the events of Zero Day. Book 3, Rogue Code: A Novel (Jeff Aiken Series, May 2014) deals with vulnerabilities of the NYSE. It has a foreword by Haim Bodek, author of The Problem of HFT: Collected Writings on High Frequency Trading & Stock Market Structure Reform. Works Computer books Russinovich, Mark; Margosis, Aaron (October 17, 2016). Troubleshooting with the Windows Sysinternals Tools. Microsoft Press. ISBN 978-0-7356-8444-7. Novels Articles Videos References External links Video interview with Mark in his office at Microsoft on TechNet Edge