You cannot remount the public folder store, and an event ID 116 message occurs in Exchange Server 2003

After you move all public folder replicas from a source server that is running Microsoft Exchange Server 2003 to a destination Exchange server, you cannot remount the public folder store. Additionally, the following event is logged in the Application log:

Event Type: Error
Event Source: EXOLEDB
Event ID: 116
Description: Microsoft Exchange OLEDB was unable to initialize event system correctly. Support for store event may have been disabled. HRESULT = 0x8007007e.

This issue occurs because the Exchange OLE DB provider (ExOLEDB) cannot be started when the events system folder does not have a local replica on the source server.

To resolve this issue, install the following hotfix on the source Exchange server. After you install this hotfix, you can remount the public folder store even if the events system folder does not have a local replica. However, the following event error message will be logged:

Event Type: Error
Event Source: EXOLEDB
Event ID: 131
Description: The events subsystem for the public folder database was not initialized because the system folder named StoreEvents%1 and its subfolders do not have a replica on this server.

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

Because of a file dependency, this hotfix requires Microsoft Exchange Server 2003 Service Pack 2 to be installed on the server.

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

Restart requirement

When you install this hotfix, the following services will be restarted:

• The Microsoft Exchange Information Store service
• The IIS Admin service and all dependent services

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 item in Control Panel.

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