Westford, MA – September 13, 2005 – NetScout Systems, Inc. (NASDAQ: NTCT), a leading provider of network and application performance management solutions, today announced that IDG’s Computerworld, one of the foremost IT industry newspapers, selected NetScout, as a winner of its first annual Horizon Awards for cutting-edge technologies. A group of independent CIOs selected NetScout’s Progressive Analytics™ technology from hundreds of submissions.

“The Horizon Award winners represent the most innovative, promising new technologies with the potential to significantly impact both consumers and enterprises in the coming years,” said Don Tennant, editor in chief of Computerworld. “NetScout’s Progressive Analytics technology was chosen for its power to automate network and application performance management and its ability to have a direct, positive impact on business operations.”

NetScout’s Progressive Analytics technology automates the process of detecting and diagnosing application and network performance problems before they impact critical business services. The patent-pending technology uses real time performance metrics to establish statistically expected behavior values using advanced modeling and analytics. For IT operations staff, the outcome is fewer, more reliable alarms accompanied by actionable diagnostic results, helping them to reduce the mean-time-to-repair of network and application performance problems, protect IT service quality, and improve IT productivity. Correspondingly, the broader enterprise or government organization obtains better business service dependability and responsiveness.

“Coming from a group of independent CIOs and one of the leading publications in our industry, this recognition underscores the demand for automated management to improve the performance of enterprise applications,” said Ashwani Singhal, vice president of research and development at NetScout. “Shortening the problem lifecycle is a constant struggle for IT operations groups. The intelligent anomaly detection and diagnostic capabilities of our Progressive Analytics technology are a determined step towards resolving network and application problems before they impact business services.”

The Horizon Award winners were profiled in a special report in the September 12 issue of Computerworld. See NetScout’s profile online at: http://www.computerworld.com/softwaretopics/software/story/0,10801,104471,00.html.

About the Horizon Awards
The Computerworld Horizon awards were established this year to inform readers of the most cutting-edge technologies that are “on the horizon” from research labs and private companies. The program is accompanied by an eight-page special report in Computerworld magazine and online at http://www.computerworld.com/horizon. The feature will look at this year’s winning technologies, here which range from super-fast worm blocker to software that analyzes voice recordings to gauge the caller's emotions.

About NetScout Systems
NetScout Systems, Inc. (NASDAQ: NTCT) is a market leader and pioneer of integrated network and application performance management products and solutions that unify performance across the enterprise. NetScout’s nGenius Performance Management System is helping more than 3000 leading companies increase their return on infrastructure investments by optimizing the performance of networks and applications according to business priorities. NetScout is headquartered in Westford, Massachusetts and has offices worldwide. Further information is available at http://www.netscout.com.

NetScout and the NetScout logo, nGenius, and Quantiva are registered trademarks of NetScout Systems, Inc. The CDM logo, MasterCare and the MasterCare logo, are trademarks of NetScout Systems, Inc. Other brands, product names and trademarks are property of their respective owners. NetScout reserves the right, at its sole discretion, to make changes at any time in its technical information and specifications, and service and support programs.

NetScout PR Contacts