Microsoft KB Archive/910471

= FIX: An access violation occurs in MS DTC when a client tries to create an enlistment =

Article ID: 910471

Article Last Modified on 12/5/2007

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APPLIES TO

 Microsoft COM+ 1.5, when used with:  Microsoft Windows Server 2003, Standard Edition (32-bit x86)

 Microsoft Windows Server 2003, Standard x64 Edition

 Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)

 Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems</li></ul>

 Microsoft Windows Server 2003, Enterprise x64 Edition</li></ul>

 Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)</li></ul>

 Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems</li></ul>

 Microsoft Windows Server 2003, Datacenter x64 Edition</li></ul> </li></ul>

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SYMPTOMS
An access violation occurs in Microsoft Distributed Transaction Coordinator (MS DTC) when a client that is connected to an MS DTC clustered resource tries to create an enlistment in MS DTC. For example, this problem may occur if a computer where Microsoft SQL Server is installed loses synchronization with an MS DTC server and then tries to enlist a transaction in MS DTC.

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CAUSE
This problem occurs because of two race conditions in the MS DTC code. In one race condition, the transaction manager (TM) tries to create a trace before an interface pointer to perform that trace exists. A second race condition exists when the MS DTC proxy sends TMDown notifications to enlistments and resource managers.

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Hotfix rollup package information
This problem is fixed in Microsoft Windows Server 2003 Post-Service Pack 1 COM+ 1.5 Hotfix Rollup Package 7. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

910730 Availability of Windows Server 2003 Post-Service Pack 1 COM+ 1.5 Hotfix Rollup Package 7

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
You must have Windows Server 2003 installed to apply this hotfix.

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.

Windows Server 2003 SP1, x86
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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

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

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

Additional query words: MSDTC

Keywords: kbhotfixserver kbqfe kbfix kbbug kbpubtypekc KB910471

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