How to isolate providers in Microsoft Exchange Calendar Connector for troubleshooting purposes

MORE INFORMATION

If there is more than one calendar provider configured, the Calendar Connector service automatically starts all the providers that are configured. The Calendar Connector service also starts some general administrative processes in the background. When you troubleshoot issues that are related to the Calendar Connector service, you can isolate certain providers without having to remove each calendar connection on the Calendar Connector tab.
The following table lists the six processes that the Calendar Connector service may run:

Provider Name	Description
CALSYNC	Process for updating all F/B records for custom recipients
ADMINSVC	General cleanup process
MAPICAL	Provider for the information store-F/B public folder
NOTESCAL	Provider for Lotus Notes
GWISECAL	Provider for GroupWise
PROFSCAL	Provider for OV/VM

How to isolate calendar providers

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To isolate certain calendar providers, modify the NOTESCAL provider name in the following registry key: To modify the NOTESCAL provider name, follow these steps:

1. Click Start, click Run, type regedit in the Open box, and then click OK.
2. Locate the following registry key:

   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeCalCon\Parameters

3. Add the following information if you want to troubleshoot the Lotus Notes provider. To troubleshoot other providers, change the NOTESCAL provider name to the appropriate provider that you want to troubleshoot. For example, change NOTESCAL to GWISECAL.

   Value Name: Providers
   Data Type: REG_SZ
   String: MAPICAL, NOTESCAL

4. Start Calendar Connector in console mode.
   
   To start Calendar Connector in console mode, follow these steps:
   1. Make sure that the Calendar Connector service is not running.
   2. Locate the Calcon.exe file in the appropriate folder:
      • In Exchange Server 5.5, Calcon.exe is located in the following location: Exchsrvr\Connect\Calcon
      • In Exchange 2000 Server, Calcon.exe is located in the following location: Program Files\Exchsrvr\Bin
   3. Do one of the following:
      • At the command prompt, switch to the folder that contains the Calcon.exe file, type Calcon.exe, and then press ENTER.
      • Start Windows Explorer, locate the folder that contains the Calcon.exe file, and then double-click Calcon.exe.

Notes

• To stop Calendar Connector, press CTRL+BREAK to end the task. Sometimes, you may have to end the Calcon.exe process to end the task.
• Calendar Connector only starts the processes that you specified in the registry key in step 3.