A new feature is available to automatically stop the Microsoft Exchange Information Store service when a time-out is detected in an Exchange Server 2007 SP3 environment

This article introduces a new feature to automatically stop the Microsoft Exchange Information Store service when a time-out is detected.

Currently, when a transaction lasts longer than 60 seconds on a Microsoft Exchange Server 2007 Service Pack 3 (SP3) server, a time-out detection event is logged in the Application log. This may indicate a deadlock when the transaction happens. When the deadlock occurs, the Microsoft Exchange Information Store service stops responding.

To resolve this issue, install the following update rollup:
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
After you install the update rollup, you have to create a new registry entry to enable the new feature. To do this, follow these steps:

1. Stop the Microsoft Exchange Information Store service.
2. Click Start
   , type regedit in the Start Search box, and then press ENTER.
3. Locate and then click the following registry key:
   
   HKLM\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
4. Click Edit, point to New, and then click DWORD Value.
5. Type EnableTimeoutServiceStop, and then press ENTER.
6. Right-click EnableTimeoutServiceStop, and then click Modify.
7. In the Value data box, type 1.
8. Exit Registry Editor.
9. Start the Microsoft Exchange Information Store service.

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

For more information about the time-out detection of the Microsoft Exchange Information Store service, visit the following Microsoft website:
After you install Update Rollup 5 for Exchange Server 2007 Service Pack 3 and set the EnableTimeoutServiceStop registry key to 0x1, the Microsoft Exchange Information Store service stops automatically after a time-out is detected.

Notes

• If the Exchange server is part of a cluster environment, a failover occurs after the Microsoft Exchange Information Store service stops.
• If the Exchange server is not part of a cluster environment, you have to restart the Microsoft Exchange Information Store service manually after the service stops.
• If you configure the recovery option of the Microsoft Exchange Information Store service to Restart the Service, the Microsoft Exchange Information Store service starts automatically after a crash.