OPNET Technologies Signs Japanese Distribution Pact With Mitsui

WASHINGTON, DC -- June 21, 2000 -- OPNET Technologies, Inc., a provider of intelligent network management software, and Mitsui & Co., Ltd. today announced a comprehensive distribution agreement, paving the way for Mitsui to distribute OPNET Modeler and IT DecisionGuru software throughout Japan via Mitsui's extensive sales channels.

"The OPNET/Mitsui relationship is an important step in the expansion of our international sales efforts," said Marc Cohen, OPNET's Chairman and Chief Executive Officer. "Japan is a key market opportunity and Mitsui is highly regarded throughout the country. Mitsui's far-reaching distribution infrastructure can help us service Japanese customers to a degree that would have been very difficult on our own."

"The big winners from this deal are the service providers and IT organizations across Japan that stand to benefit greatly from OPNET's powerful suite of predictive simulation software," said Masaaki Miura, General Manager of Mitsui's Open Software Department, Solutions Business Division. "We're excited about the business opportunity this agreement offers us and we're looking forward to cultivating a new clientele based on the unique capabilities of OPNET's products."

In addition to distributing OPNET software, Mitsui is planning to open the OPNET Simulation Support Center with Johokobo, Inc. of Tokyo. Johokobo is a systems integrator and professional services firm with a highly skilled staff of OPNET-trained professionals. Together, the companies plan to use the support center to offer value-added OPNET training, consulting services and technical support.

"Mitsui is well versed in network management, having been an HP OpenView channel partner for years, and our Japanese customers are among the most sophisticated OPNET users in the world," said Todd Kaloudis, Vice President of Marketing at OPNET. "Our deal with Mitsui will help us deliver the level of service that these customers demand and we're looking forward to a long and mutually beneficial relationship with both Mitsui and Johokobo."

About Mitsui

Mitsui & Co., Ltd. is one of the foremost general trading companies in the world with more than 10,000 employees, 1,000 international subsidiaries and 225 offices in 90 countries. Mitsui offers comprehensive, integrated and high-value-added services that meet the evolving needs of companies in all types of business. Among the products that Mitsui distributes in Japan is Hewlett-Packard's suite of HP OpenView network management software. For more information about the company, visit http://www.mitsui.co.jp.

About OPNET Technologies, Inc.

The OPNET family of intelligent network management software enables our customers to optimize the performance and maximize the availability of communications networks and networked applications. The OPNET product suite combines predictive simulations and a comprehensive understanding of networking technologies to enable network professionals to more effectively design and deploy networks, diagnose network and application performance problems, and predict the impact of proposed network modifications..

The flagship products are: OPNET IT DecisionGuru, enabling service providers and enterprises to more effectively design and deploy networks and to predict the performance of their networks and applications; OPNET Modeler, enabling network equipment manufacturers to accelerate the design and development of network equipment and communication protocols; and OPNET Netbiz, accelerating the sales process for service providers and network equipment manufacturers by automating network design and proposal generation.

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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

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OPNET Technologies
(240) 497-3000
ir@opnet.com
www.opnet.com