You are prompted to restart the computer after you apply a hotfix even though you have HotPatching enabled

Support for Windows Server 2003 ended on July 14, 2015

Microsoft ended support for Windows Server 2003 on July 14, 2015. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

This article has been archived. It is offered "as is" and will no longer be updated.
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When you have HotPatching enabled on a server, you should not have to restart the computer after you apply a security update that supports HotPatching. However, Microsoft has identified HotPatching compatibility issues with several applications.
Microsoft has identified HotPatching compatibility issues with the following programs:
  • Proventia Desktop Agent
  • Bull Guard Suite v6
These security applications make it impossible to use HotPatching with user mode binaries. Additionally, it is likely that you will experience HotPatching compatibility issues with some software from Internet Security System (ISS).

By default, some packages do not have HotPatching turned on. You can decide to install these packages by using HotPatching based on the programs that are running on the computers in your organization. For more information about how to install HotPatching enabled packages, click the following article number to view the article in the Microsoft Knowledge Base:
897341 How to use HotPatching to install security updates for Windows Server 2003 Service Pack 1

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
update security_patch security_update security bug flaw vulnerability malicious attacker exploit registry unauthenticated buffer overrun overflow specially-formed scope specially-crafted denial of service DoS TSE WinNT Win2000 appcompat issues
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 922612 - Last Review: 12/09/2015 06:24:54 - Revision: 3.1

Microsoft Windows Server 2003 Service Pack 1, Microsoft Security Essentials

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