Just in - the updated Windows Server 2003 Security Guide provides specific recommendations about how to harden computers that run Microsoft Windows Server 2003 (SP1) in three distinct enterprise environments—one in which older operating systems such as Windows NT 4.0 and Windows 98 must be supported, one in which Windows 2000 is the earliest version of the Windows operating system in use, and one in which concern about security is so great that significant loss of client functionality and manageability is considered an acceptable tradeoff to achieve maximum security. These three environments are respectively referred to as the Legacy Client (LC), Enterprise Client (EC), and Specialized Security – Limited Functionality (SSLF) environments throughout this guide.

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The Threats and Countermeasures guide provides you with a reference to all security settings that provide countermeasures for specific threats against current versions of the Microsoft Windows operating systems. This guide is a companion to two other Microsoft publications: the Windows Server 2003 Security Guide, and the Windows XP Security Guide