Microsoft KB Archive/914800

= E-mail client computers stop responding, and the Store.exe process uses up to 100 percent of the CPU resources on a server that is running Exchange Server 2003 =

Article ID: 914800

Article Last Modified on 10/25/2007

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APPLIES TO


 * Microsoft Exchange Server 2003 Standard Edition
 * Microsoft Exchange Server 2003 Enterprise Edition

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SYMPTOMS
Up to 100 percent of the CPU resources are used on a server that is running Microsoft Exchange Server 2003. Additionally, some e-mail client computers stop responding (hang) or cannot connect to the Exchange server.



CAUSE
This problem may occur if an e-mail client tries to download an HTML e-mail message to a personal folder (.pst) file. When a message is converted from HTML to rich-text format (RTF) in a .pst file, the Store.exe process that runs on the Exchange server uses up to 100 percent of the CPU resources.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
This hotfix requires Microsoft Exchange Server 2003 Service Pack 2 (SP2).

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

817903 New naming schema for Exchange Server software update packages

Additional query words: mailflow, HTMLRTF converter, Unicode BiDi algorithm, DoS



Keywords: kbexpertiseadvanced kbqfe kbfix kbbug kbpubtypekc KB914800

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