opnet
Press release

OPNET Announces Acceptance Into EMC Smarts Technology Alliances Program

BETHESDA, MD– August 10 , 2005 – OPNET Technologies, Inc. (NASDAQ: OPNT), a leading provider of management software for networks and applications, today announced its acceptance into the EMC Smarts Technology Alliances Program. The program consists of a select group of vendors working together to deliver solutions that can be tightly integrated with EMC Smarts software. Applicants are only formally admitted into the program when their software technology adapters become commercially available.

As part of today’s announcement, OPNET unveiled its software technology adapter for Smarts. The software is available immediately and enables network data from Smarts -- including comprehensive (Layer 2/3) topology and MIB-based hardware asset information -- to be automatically fused with detailed configuration and traffic information within OPNET ’s VNE Server . The end result allows enterprise customers to improve network availability, security, and documentation for regulatory compliance.

Todd Kaloudis, OPNET’s VP of Business Development & Marketing, explained, “ In addition to real-time management functions, EMC Smarts also provides a rich source of multi-vendor network connectivity data. With this information, OPNET can automatically analyze a comprehensive model of the network to identify configuration errors before they lead to bigger problems. Mis-configured devices are the leading cause of downtime and can also compromise security, so this kind of analysis is essential -- for any organization with a wide-area network.”

“OPNET offers a truly unique technical contribution to organizations that have deployed EMC Smarts for managing their network infrastructure,” said Chris Gahagan, Senior Vice President, EMC Software. “With this integration, our customers will realize even greater value from their investment by using Smarts data in OPNET software, ensuring extremely high levels of network resiliency .”

Availability
The OPNET adapter for Smarts is available immediately and supported with the integration of EMC Smarts version 6.1 or later, and OPNET’s VNE Server version 3.0. VNE Server is compatible with IT Guru Suite version 11.0 and IT Sentinel version 11.0.

About OPNET Technologies, Inc.
Founded in 1986, OPNET Technologies, Inc. (NASDAQ:OPNT) is a leading provider of management software for networks and applications. For more information about OPNET and its products, please visit http://www.opnet.com/.

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OPNET and OPNET Technologies, Inc. are trademarks of OPNET Technologies, Inc. All other trademarks are the property of their respective owners.

Statements in this press release that are not purely historical facts may constitute forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. OPNET Technologies, Inc. ("OPNET") assumes no obligation to update statements. Forward-looking statements are predictions based upon information available to OPNET as of the date of this press release and involve risks and uncertainties; therefore, actual events or results may differ materially. For a discussion of risk factors, see OPNET's reports, including its most recent 10-Q and 10-K, filed with the Securities & Exchange Commission.

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Note to editors: The word OPNET is spelled with all upper-case letters.

OPNET Media Contact:
Margarita Castillo
OPNET Technologies, Inc.
(240) 497-3000
Media@opnet.com
www.opnet.com

Computer Associates Contact:
Eric Snow  
Computer Associates
(508) 904-2653
eric.snow@ca.com