XFOR: Store Notification for CALCON May Stop

• Microsoft Exchange Server, version 5.5

SYMPTOMS

The Microsoft Exchange Calendar Connector relies on store notifications for processing MAPI-based queries from Exchange clients. In certain cases, this notification mechanism may stop, and require a restart of the Calendar Connector.

CAUSE

There is a problem with the store's push notification mechanism. In a heavy stress environment, this problem becomes more apparent. This problem occurs more often on high-powered Alpha-based servers than on Intel servers.

WORKAROUND

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).
To work around this problem, add a key to the registry. To do this, perform the following steps:

1. Start Registry Editor (Regedt32.exe).



2. Locate the following key in the registry:
   

   
         HKLM\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem
      

   NOTE: The above registry key is one path; it has been wrapped for readability.



3. On the Edit menu, click Add Value, and then add the following registry value:




      Value Name: Notification Timeout
      Data Type:  REG_DWORD
      Value:      1
   

4. Quit Registry Editor.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5.

MORE INFORMATION

Additional query words:

Keywords :
Version : winnt:5.5
Platform : winnt
Issue type : kbbug