Article ID: 894923 - View products that this article applies to.
Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/256986/ )Description of the Microsoft Windows registry
If you are using Microsoft Exchange Server 2003 Service Pack 1 on a computer that is part of a server cluster, the W3SVC service stops when the Exchange virtual server fails over to another node. When the W3SVC service stops, this causes all Web sites that are running on the cluster node to stop.
This problem occurs because of a function call that is made when the Exchange virtual server group is moved to the other cluster node. This function call stops the W3SVC service itself instead of just stopping the instance that is associated with the Exchange virtual server.
Service pack informationTo resolve this problem, obtain the latest service pack for Exchange Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/836993/EN-US/ )How to obtain the latest service packs for Exchange Server 2003
Hotfix informationA 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:
PrerequisitesTo install this hotfix, you must be running Exchange Server 2003 SP1.
For more information about where to obtain Exchange Server 2003 SP1, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/836993/ )How to obtain the latest service packs for Exchange Server 2003
Restart requirementYou do not have to restart the computer after you apply this hotfix. However, you must manually shut down the Cluster service and all the dependent resources before you install this hotfix. For more information, see the "Hotfix installation instructions" section.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe 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.
Date Time Version Size File name ------------------------------------------------------ 30-Mar-2005 10:12 6.5.7232.99 133,632 Exres.dll
Hotfix installation instructionsYou must install this hotfix on each node of the server cluster. Additionally, you must add and configure the DoNotStopW3SVC registry entry to enable the hotfix. To install this hotfix, follow these steps.
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
To work around this problem, you can manually start the Web sites. To do this, follow these steps:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Exchange Server 2003 Service Pack 2.
For more information about how to install Exchange hotfixes on a clustered server, click the following article number to view the article in the Microsoft Knowledge Base:
328839For more information about the terminology that is used for software updates, click the following article numbers to view the articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/328839/ )How to apply Exchange service packs and hotfixes
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
(http://support.microsoft.com/kb/817903/ )New naming schema for Exchange Server software update packages
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