Avocent's LANDESK Positioned as a Visionary in 2009 Endpoint Protection Platforms Magic Quadrant

Evaluation Based on Completeness of Vision and Ability to Execute

SALT LAKE CITY, UT--(Marketwire - May 12, 2009)–  Avocent Corporation (NASDAQ: AVCT), a global leader in IT operations management, today announced that LANDESK division has been positioned by Gartner, Inc. in the Visionaries Quadrant in the 2009 Endpoint Protection Platforms Magic Quadrant* report.

Gartner's Magic Quadrant for Endpoint Protection Platforms is based on an assessment of a company's ability to execute and completeness of vision. Gartner evaluated the LANDESK Endpoint Security Management solution as part of this report.

"We are very pleased to be placed in the Visionaries Quadrant and we see this as a validation of our focus on a layered security approach to endpoint protection," said Steve Daly, Executive VP and General Manager of LANDESK. "We have focused on integrating the critical endpoint protection technologies including vulnerability identification and remediation, AV, spyware detection and removal, application blocking, data protection, port blocking, white listing and blacklisting, and many more critical endpoint protection technologies. LANDESK/Avocent will continue to change the game by enabling security of any system anywhere with only an Internet connection."

* Gartner Research "Magic Quadrant for Endpoint Protection Platforms, 2008" by P. Firstbrook, A. Hallawell, J. Girard and N. MacDonald. May 4, 2009.

About the Magic Quadrant

The Magic Quadrant is copyrighted May 4, 2009 by Gartner, Inc. and is reused with permission. The Magic Quadrant is a graphical representation of a marketplace at and for a specific time period. It depicts Gartner's analysis of how certain vendors measure against criteria for that marketplace, as defined by Gartner. Gartner does not endorse any vendor, product or service depicted in the Magic Quadrant, and does not advise technology users to select only those vendors placed in the "Leaders" quadrant. The Magic Quadrant is intended solely as a research tool, and is not meant to be a specific guide to action. Gartner disclaims all warranties, express or implied.

About Avocent/LANDESK

Avocent delivers IT operations management solutions that reduce operating costs, simplify management, and increase the availability of critical IT environments 24/7 via integrated, centralized software. LANDESK delivers cost-effective systems, security, and process management solutions that help IT teams automate and simplify the management of desktops, servers, and mobile devices. With long-standing partner relationships and solutions successfully deployed at leading enterprises worldwide, LANDESK continues to deliver rapid innovation and time to value to help organizations achieve their business objectives. Additional information is available at www.landesk.com.

Forward-looking Statements

This press release contains statements that are forward-looking statements as defined within the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from the statements made, including the risks associated with general economic conditions, risks attributable to future product demand, sales, and expenses, risks associated with acquisitions and acquisition integration, risks associated with product design efforts and the introduction of new products and technologies, and risks associated with obtaining and protecting intellectual property rights. Other factors that could cause operating and financial results to differ are described in the Avocent annual report on Form 10-K filed with the Securities and Exchange Commission on February 27, 2009. Other risks may be detailed from time to time in reports to be filed with the SEC. Avocent does not undertake any obligation to publicly update its forward-looking statements based on events or circumstances after the date hereof.

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