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Improving the flow of email messages and calendar synchronization when the BlackBerry Enterprise Server Express runs on Windows Server 2008

The BlackBerry® Messaging Agent uses the CalHelper application to connect to the Microsoft® Exchange Server so that the BlackBerry Messaging Agent can synchronize calendars on BlackBerry devices with Microsoft® Outlook® calendars.

The BlackBerry Messaging Agent uses the MAPI32.dll library to create temporary MAPI profiles that the CalHelper application can use to connect to the Microsoft Exchange Server to access users’ calendars.

After you install the BlackBerry Enterprise Server Express, if you are running Windows Server® 2008 and notice that the limit that Windows Server 2008 places on NSPI connections is impacting MAPI performance and the flow of email messages, you can change how the BlackBerry Messaging Agent creates temporary MAPI profiles for the CalHelper application.

For more information, visit www.blackberry.com/support to read KB 21413.

Change how the BlackBerry Enterprise Server Express creates temporary MAPI profiles for the CalHelper application

  1. On the computer that hosts the BlackBerry® Enterprise Server Express, on the taskbar, click Start > Run.
  2. Type regedit.
  3. Click OK.
  4. Perform one of the following actions:
    • If you are running a 32-bit version of Windows®, go to HKEY_LOCAL_MACHINE\SOFTWARE\Research In Motion\BlackBerry Enterprise Server\Agents.
    • If you are running a 64-bit version of Windows, go to HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Research In Motion\BlackBerry Enterprise Server\Agents.
  5. Create a DWORD value that is named CreateCDOProfile.
  6. Double-click the new DWORD value.
  7. In the Value data field, perform one of the following actions:
    • To use the CDO.dll library to create temporary MAPI profiles for the CalHelper application, type 0.
    • To use the MAPI32.dll library to create temporary MAPI profiles for the CalHelper application, type 1.
  8. In the Windows Services, restart the BlackBerry Dispatcher.
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