OPNET 11.0 Versions of IT Guru, SP Guru, Modeler, and ODK Products Available to Customers Worldwide.

BETHESDA, Md. -- --Latest release expands OPNET's value proposition to corporate and government enterprises, network service providers, and network R&D organizations--

OPNET Technologies, Inc. (NASDAQ: OPNT), a leading provider of management software for networks and applications, today announced general availability of the 11.0 release of OPNET IT Guru, SP Guru, Modeler, and ODK (OPNET Development Kit) products. The latest release significantly enhances OPNET's value propositions for end-to-end problem solving and problem prevention, with an open product architecture that supports several new third party integrations.

OPNET President & CTO, Alain Cohen, stated, "With emphasis on automation and unique analysis, rich data modeling, and predictive simulation, our 11.0 products enable businesses and governments to more easily accomplish their objectives. The 11.0 release also stays true to our philosophy of an open product architecture, which makes it possible for our clients to take advantage of data and tools they already have in place."

The new software release delivers a broad spectrum of innovative capabilities for:

Network and Application Performance Management

--Significant enhancements to the ACE module, which provides advanced packet analysis for rapid end-to-end application performance troubleshooting. New features include secure packet capture and transmission, new analysis for CORBA and common web services (SOAP, UDDI, MS .NET), and a new ACE Whiteboard for designing and optimizing networked applications.

--New integrations between ACE and Panorama and Commander (from the Altaworks acquisition), OPNET Panorama provides realtime system performance analytics. OPNET Commander provides active application response time monitoring. OPNET ACE is also compatible with popular third-party response time monitoring solutions.

Network Configuration Management

--Significantly enhanced NetDoctor rules library for analyzing network device configurations, with 400+ rules. Among the enhancements are new rule suites for IP Multicast, spanning tree, Etherchannel, MPLS VPNs, additional ATM rules, and additional security rules (AAA, PIX, IP Routing, Administration).

Capacity Planning, Design, and R&D

--New 3D Network Visualizer (3DNV) module for both planning and simulation of mobile wireless communications networks. 3DNV embeds technology from MAK Technologies.

--New TIREM module for physical layer wireless modeling. TIREM embeds technology from Alion Science & Technology.

--New modeling capabilities for MANET (mobile ad-hoc networking), MPLS, and IPv6.

--Multi-layer network modeling, integrating models of IP/MPLS, ATM, and optical transport networks for SP Guru and WDM Guru.

--New Planning and Design module for the enterprise market.

--New SP Guru design functionality for service providers, including MPLS TE enhancements, Fast ReRoute (FRR) optimization, and traffic forecasting.

--New System Performance Module for HP OpenView, for seamless import of workload data from HP Openview Performance Manager to support enterprise systems planning.

--Integrations with third party solutions from HP, NetScout, Micromuse, SMARTS, Fluke Networks, BMC, Network General, InfoVista, Concord, Cisco, Juniper, Nortel, Extreme, Foundry, Check Point, Nokia, and several other network and system performance management vendors.

Availability

OPNET 11.0 versions of IT Guru, SP Guru, Modeler, and ODK are available immediately from OPNET Technologies, Inc.

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, visit www.opnet.com.

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.

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