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(840315) - Microsoft has released security bulletin MS04-023. The security bulletin contains all the relevant information about the security update, including file manifest information and deployment options. To view the security bulletin, visit the following...

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks
Article ID: 840315 - Last Review: February 6, 2007 - Revision: 3.5

MS04-023: Vulnerability in HTML Help could allow code execution

View products that this article applies to.
System TipThis article applies to a different version of Windows than the one you are using. Content in this article may not be relevant to you. Visit the Windows Vista Solution Center

On This Page

Microsoft has released security bulletin MS04-023. The security bulletin contains all the relevant information about the security update, including file manifest information and deployment options. To view the security bulletin, visit the following Microsoft Web site:
http://www.microsoft.com/technet/security/bulletin/ms04-023.mspx (http://www.microsoft.com/technet/security/bulletin/ms04-023.mspx)


For additional information about the latest service pack for Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
322389  (http://kbalertz.com/Feedback.aspx?kbNumber=322389/ ) How to obtain the latest Windows XP service pack
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Known issues

For security reasons, the 840135 security update prevents unsupported use of compiled HTML Help files. After you apply 840315, only files that have the .chm file name extension can be used as compiled HTML Help files. Programs that use other file name extensions for compiled HTML Help files will no longer display content by using HTML Help.

To work around this issue, the program vendor should take the following actions:
  • Update their program to support or to use compiled HTML Help files that are named with the .chm file name extension.
  • Update any existing compiled HTML Help files to have the .chm file name extension.
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APPLIES TO
  • Microsoft Windows Server 2003, 64-Bit Datacenter Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows XP 64-Bit Edition Version 2003
  • Microsoft Windows XP 64-Bit Edition Version 2002
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Media Center Edition
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Tablet PC Edition
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Professional Edition
  • Microsoft Windows 2000 Server
  • Microsoft Windows Millennium Edition
  • Microsoft Windows 98 Second Edition
  • Microsoft Windows 98 Standard Edition
  • Microsoft Internet Explorer 6.0 Service Pack 1, when used with:
    • Microsoft Windows NT 4.0 Service Pack 6a
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Keywords: 
kbbug kbfix kbsecvulnerability kbqfe kbsecurity kbwinxpsp2fix kbsecbulletin kbwinxppresp2fix kbwin2000presp5fix kbwinserv2003presp1fix atdownload kbhotfixserver KB840315
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