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

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.

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.

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:

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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, Itanium architecture

Windows Server 2003 Service Pack 1 (SP1), Itanium architecture

Windows Server 2003 SP1, x64

Windows Server 2003, x86

Windows Server 2003 SP1, x86

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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