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Changes to Functionality in Windows Server 2003 Service Pack 1

Applies To: Windows Server 2003 with SP1

This document specifically focuses on the changes between earlier versions of Windows Server 2003 and Windows Server 2003 with Service Pack 1 (SP1) and reflects the current thinking of Microsoft about Service Pack 1 and its implications for IT professionals and developers. Examples and details are provided for several of the technologies that are experiencing the biggest changes.

The goal for Service Pack 1 is to build on the Trustworthy Computing efforts of Microsoft that were applied in Windows Server 2003. For an overview of the Microsoft Trustworthy Computing initiative, see “Trustworthy Computing Defined,” on the Microsoft Web site at

Windows Server 2003 SP1 incorporates many of the changes in functionality introduced with Windows XP Service Pack 2 (XP SP2), so there are many changes that were documented for Windows XP SP2 that are reiterated in this document.

Information that is not directly related to a technology area is contained in the Appendices section.

A downloadable copy of this document is available on the Microsoft Download Center at

Document History

This is the third release of this document for Windows Server 2003 Service Pack 1 (SP1).

  • Added new sections: Distributed File System (DFS) in Windows Server 2003 Service Pack 1, Distributed Transaction Coordinator, Internet Information Services (IIS) in Windows Server 2003 Service Pack 1, .NET Framework for x64-based operating systems, Terminal Services in Windows Server 2003 Service Pack 1

  • Revised sections: Access-based Enumeration, Data Execution Prevention, DCOM Security Enhancements, Post-Setup Security Updates, Remote Installation Services (RIS) for 64-bit operating systems, Windows Firewall

Other Resources and Feedback

If you have any other questions that are not answered by this paper, “Windows Server 2003 Resources for IT Professionals” on TechNet has links to many other resources regarding Windows Server 2003. This page is updated periodically with the most recent information that is available.

In addition, we appreciate feedback on our documentation and our product. The following resources are available to you for providing feedback:

Windows Server 2003 Newsgroups

Newsgroups are a great place to ask questions of other users and find general information about other users' experiences with Windows Server 2003. You can examine some of the newsgroups using a Web browser on the Microsoft Web site at

Product Support Services

If you are having a problem with your computer after installing Windows Server 2003 Service Pack 1, check the product support Web site on first to see if your issue has been identified in Frequently Asked Questions or by a Knowledge Base article. If not, you can contact Product Support Services to get help with your issue. To start, see “Windows Server 2003 Support Center” on the Microsoft Web site at

Microsoft Wish Program

If you have a suggestion about how to improve a feature in Windows that you would like considered for the next service pack or major Windows version, you can contact the Microsoft Wish Program and tell them your idea. To find out how to send a comment or suggestion, see “How to Contact the Microsoft Wish Program” on the Microsoft Knowledge Base Web site at

Documentation feedback

If you have any comments or suggestions about Windows Server 2003 Service Pack 1 documents, on the Web version of this document on the Microsoft Web site at the bottom of the page, click Comments and tell us what you think. Note that this is only for comments on the documentation, not the product itself.

Community Additions

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