CA And Opnet Announce Agreement To Extend CA’s Industry Leading Performance Management Solutions With End-To-End Capacity Planning

Partnership to Help Customers Optimize Resources and Assure Service Levels.

ISLANDIA, N.Y., AND BETHESDA, MD, November 10, 2005 – Computer Associates International, Inc. (NYSE:CA) and OPNET Technologies, Inc. (NASDAQ: OPNT) today announced a global sales and marketing agreement that combines CA’s performance monitoring, trend analysis, and reporting solutions with OPNET’s modeling and capacity planning products. The OPNET products include OPNET’s award-winning IT Guru platform with Server and Mainframe Modeling modules adapted for CA products, and OPNET’s Application Characterization Environment. The agreement also includes terms for OPNET and CA to cooperate in offering professional services and support.

“To maximize performance and minimize downtime, IT organizations must address both day-to-day performance problems and long-term performance and capacity issues,” said Alan Nugent, senior vice president and general manager, Enterprise Systems Management Business Unit, Computer Associates. “CA’s partnership with OPNET provides our customers with robust modeling and planning capabilities to effectively address both of these optimization issues.”

Combined with Unicenter Systems Performance and NeuMICS Resource Management software, the OPNET products enable customers to more effectively implement business-critical and/or delay-sensitive applications — including Web services, VoIP, and video — across distributed server and mainframe systems. Customers can simulate “what-if” scenarios to model changes in workload, as well as in server (Windows) and mainframe (z/OS) hardware and software configurations, across the enterprise.

According to Forrester Research, “capacity planning must evaluate a complete process in terms of resource consumption, its future impact on performance, and the bottlenecks that might affect expected service levels. It also includes the capability to evaluate, through modeling, the effects of a resource reaction on service performance.” *

Richard G. Broden, vice president/manager of Integrated Performance Engineering with Bank of America will discuss best practices associated with CA and OPNET products at CA World next week in Las Vegas, NV. Broden will explain how IT organizations can effectively anticipate resource and capacity requirements before implementing IT projects in production in order to meet service level agreements.

“We are pleased that CA has selected our systems performance and capacity modeling technologies to deliver additional value to our mutual customers,” said Marc Cohen, chairman and CEO, OPNET Technologies. “OPNET shares CA’s vision that IT management processes need to be managed more proactively to properly support today’s dynamic, technology-dependent business operations.”

Prior to CA’s acquisition of Concord Communications, OPNET was a member of Concord’s eHealth Ready Partner Program. As a result, OPNET’s network modeling solutions import network link load data from eHealth to more effectively manage the impact of changes to the network infrastructure.

* The Evolution of Infrastructure Management by JP Garbani, Forrester Research, Inc., 10/31/2005

About OPNET

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.

About CA

Computer Associates International, Inc. (NYSE:CA), one of the world’s largest management software companies, delivers software and services across operations, security, storage, life cycle and service management to optimize the performance, reliability and efficiency of enterprise IT environments. Founded in 1976, CA is headquartered in Islandia, N.Y., and operates in more than 100 countries. For more information, please visit http://ca.com.

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© 2005 Computer Associates International, Inc. One Computer Associates Plaza, Islandia, N.Y. 11749. All trademarks, trade names, service marks, and logos referenced herein belong to their respective companies.

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Eric Snow

Computer Associates International, Inc.

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