BETHESDA, Md., and GHENT, Belgium -- OPNET Technologies, Inc. (Nasdaq: OPNT), the leading provider of intelligent network management software, and Comsof, a Belgium-based software company with world-class expertise in optical network design, today announced the completion of a joint venture and introduced a new OPNET product for optical network design.Together they are collaborating to deliver advanced solutions that enable service providers to better plan, design, and evaluate optical networks. The joint venture, WDM NetDesign B.V.B.A, based in Ghent Belgium, has ownership of the intellectual property and key staff associated with the Comsof's WDMNetDesign product. The joint venture will focus on research and development of optical network design software to be used in OPNET's products, including Netbiz, SP Guru, and the new WDM Guru.WDM Guru, to be unveiled at OPNETWORK 2001, is a new OPNET application that contains a superset of features from the WDMNetDesign product originally developed by Comsof. WDM Guru will support both mesh and ring transport networks, and will address topological design, routing, network dimensioning, grooming, and availability analysis. OPNET assumes primary responsibility for sales and marketing of the new product.OpNet Technologies Inc. Comsof