Micromuse Selected by EyakTek to Provide Net-Centric Service Management in $15 Million Navy Contract; Netcool(R) Solutions to Su

Micromuse Inc. (Nasdaq: MUSE) today announced that Eyak
Technology (EyakTek) has selected Netcool(R) solutions to provide
realtime service management and assurance for next generation
infrastructures as part of a defense contract that was recently
awarded to EyakTek by the Space and Naval Warfare Systems Command in
San Diego. As part of the contract, Micromuse, the leading provider of
ultra-scalable, realtime business and service assurance software, will
provide its Netcool solutions to support the transport communications
backbone layer and provide a foundation for Net-Centric Operations and
Warfare. The contract includes options which, if exercised, will bring
the cumulative value of the contract to approximately $15 Million for
Micromuse over this period.
   As part of the Ashore Transformation Project, EyakTek will
implement Netcool solutions to monitor and manage the transforming
systems and services that enable the Navy's ship-to-shore
communications that support operational readiness and assure the
reliability and security of its network-centric operations with a
realtime common operational view of the infrastructure.
   "Micromuse Netcool solutions have been tried and tested in
massive, complex military environments worldwide, including the U.K.
Ministry of Defense, the U.S. Air Force, the Pentagon, NATO and the
Department of Homeland Security," said Lloyd Carney, Chief Executive
Officer, Micromuse. "We are proud to provide a robust and secure
framework that will assure information about the status of services in
the network environment, helping the Navy to improve situational
awareness, shorten critical decision making cycles, and ensure that
data is shared globally among users to unify the forces focused on the
mission."

   About EyakTek

   Eyak Technology, LLC (EyakTek) is one of the fastest growing
diversified federal contractors, with expertise in Communications
Solutions, Information Technology Solutions, Healthcare Services, and
Architecture & Engineering Services. EyakTek provides award-winning
solutions for DoD and Civilian federal agencies, as well as state and
local government agencies, through a wide selection of contract
vehicles. As an Alaska Native-owned, 8(a)-certified company, EyakTek
also provide socio-economic benefits for its community of Native
shareholders. For more information, please visit www.eyaktek.com.

   About Micromuse

   Micromuse Inc. (Nasdaq: MUSE) is the leading provider of
ultra-scalable, realtime business and service assurance software
solutions. The Netcool(R) software suite provides government and
commercial organizations with the assurance that their IT systems are
supporting and driving profits 24 hours a day. Unlike traditional
infrastructure management systems, Netcool solutions provide realtime
end-to-end visibility and accurate troubleshooting from a business
perspective. Such business intelligence allows organizations to
respond to problems quickly, streamline workflow processes and improve
business uptime. Micromuse Defense and intelligence agency customers
include U.S. Department of State, U.S. Air Force, U.S. Army, the
Pentagon, NASA, U.S. Navy, Department of Energy, USDA, Department of
Justice and the Army National Guard. Federal offices are located in
McLean, VA. Headquarters are located at 650 Townsend Street, San
Francisco, Calif. 94107; [phone]. The Web site is at
www.micromuse.com.

   Micromuse and Netcool are registered trademarks of Micromuse Ltd.
All other trademarks and registered trademarks in this document are
the properties of their respective owners.

   Any statements contained in this press release that do not
describe historical facts may constitute forward-looking statements as
that term is defined in the Private Securities Litigation Reform Act
of 1995. Any forward-looking statements we make are based on current
expectations, and are subject to a number of risks and uncertainties.
Actual results could differ materially.
   Factors that could cause actual future results to differ
materially from the forward-looking statements include: fluctuations
in customer demand; the Company's ability to manage its growth
(including the ability to hire sufficient sales and technical
personnel); risks associated with the expansion of the Company's
distribution channels; risk of new product introductions and customer
acceptance of new products; rapid technological change which
characterizes the Company's markets; risks associated with
competition; risks associated with international sales; and the
ability of the Company to compete successfully in the future; as well
as risks relating to pending litigation, the completed restatement of
certain of our financial statements, and other matters appearing under
the caption "Risk Factors" in the Company's most recent Quarterly
Reports on Form 10-Q and Form 10-K filed with the SEC and available on
the Company's website. The Company disclaims any obligation or
intention to update or revise any forward-looking statements.