Access Control clients are a critical element of the ProCurve Access Control Security solution. They provide a comprehensive solution to the network access control problem in a multi-platform environment. The Access Control Security solution provides wide support to most customer authentication needs with support for operating environments including Microsoft® Windows® 98, Microsoft® Windows® 2000, and Microsoft® Windows® XP; Red Hat Linux; and Apple Mac OS. In addition, the back-end interoperability with leading RADIUS authentication vendors completes an industry-leading Access Control Security solution.