Microsoft released a new Windows XP Security Guide today. Here’s their breakdown of the contents:

“The guide provides specific recommendations about how to harden computers that run Windows XP with SP2 in three distinct environments:

• Enterprise Client (EC). Client computers in this environment are located in an Active Directory® directory service domain and only need to communicate with systems that run Windows 2000 or later versions of the Windows operating system.
• Stand-Alone (SA). Client computers in this environment are not members of an Active Directory domain and may need to communicate with systems that run Windows NT 4.0.
• Specialized Security – Limited Functionality (SSLF). Concern for security in this environment is so great that a significant loss of functionality and manageability is acceptable. For example, military and intelligence agency computers operate in this type of environment.”