Memory usage increases unexpectedly in high-stress situations when you continuously call Provisioning Web Services to do duplicate tasks in Hosted Messaging and Collaboration 4.0

When you continuously call Provisioning Web Services to do duplicate tasks in Microsoft Hosted Messaging and Collaboration 4.0, memory usage increases unexpectedly in high-stress situations. Additionally, one of the Hosted Messaging and Collaboration Web services may finally return an "Out Of Memory" exception that resembles the following:

This problem occurs because the XML processing code generates many dynamic assemblies. This leads to the increase in memory usage.

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.

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, submit a request to 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

To apply this hotfix, Hosted Messaging and Collaboration 4.0 must be installed. Additionally, the Web services must be deployed to the provisioning front-end server.

Restart requirement

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

Hotfix replacement information

This hotfix does not replace a previously released software update.

Steps to apply the hotfix

To apply this hotfix, follow these steps:

1. Copy the Servicebase.msi file to the PROV01 server and to any other Microsoft Provisioning Web Services server.
2. On each of those servers, execute the Servicebase.msi file, and then accept all the default settings.
3. Restart Internet Information Services (IIS).
4. Copy the other .msi files to the MSIShare folder on the MPS01 server.
5. Create a backup of the existing files, and then disable and stop the Microsoft Provisioning Server (MPS) engine.
6. Start the MPS Deployment Tool.
7. Expand Core Platform, and then expand Core MPF Install and MPF Core Namespaces.
8. Right-click Managed Active Directory, and then click Uninstall.
9. Expand Hosted Active Directory, right-click Hosted Active Directory, and then click Uninstall.
10. Expand MPS Web services.
11. Expand Hosted Active Directory Web Service, right-click each server, and then click Uninstall for each server.
12. Expand Managed Active Directory Web Service, right-click each server, and then click Uninstall for each server.
13. Click Start Deployment.
14. Right-click all the uninstalled components, and then click Install.
15. Click Start Deployment.
16. Restart IIS on the PROV01 server and on any other Web service servers.
17. In Component Services, right-click Provisioning Engine, and then click Enable and Start to restart the MPS engine.

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 item in Control Panel.

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

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