XFOR: How to Configure the Exchange Server 5.5 Calendar Connector to Use the Exchange 2000 Router for Novell GroupWise (258095)


The information in this article applies to:

  • Microsoft Exchange Server 5.5 SP2
  • Microsoft Exchange Server 5.5 SP3
  • Microsoft Exchange 2000 Server
This article was previously published under Q258095
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

SUMMARY

This article explains how to set up the Microsoft Exchange Calendar Connector Service on a Microsoft Exchange Server 5.5 computer to use the router for the Microsoft Exchange Novell GroupWise Connector that resides on a Microsoft Exchange 2000 server.

The GroupWise Connector, which is included with Exchange 2000, supports meeting requests. This means that GroupWise, and Exchange 2000 users can send meeting requests to each other over the GroupWise Connector. However, Exchange 2000 does not include, or support the Calendar Connector. The Calendar Connector is an additional component that works in tandem with the GroupWise Connector to add support for free-and-busy lookups between GroupWise, and Exchange users. This means that although Exchange 2000 supports meeting requests, it does not support free-and-busy lookups.

To work around the lack of Exchange 2000 support for the Calendar Connector, keep an Exchange Server 5.5 computer in your organization that has Calendar Connector installed. Calendar Connector depends on the GroupWise Connector router service to route free-and-busy messages between Exchange, and GroupWise. Usually, an Exchange Server 5.5 computer with the Calendar Connector configured must also have the GroupWise Connector configured. It is now possible to use the GroupWise Connector of an Exchange 2000 server to route free-and-busy messages for a Calendar Connector that is installed on an Exchange Server 5.5 computer, thereby eliminating the need to install the GroupWise Connector on the Exchange Server 5.5 computer. The only GroupWise Connector component that you must install on the Exchange Server 5.5 computer is the Novell GroupWise E-Mail Address Generator. You can install this component by using the GroupWise Connector Setup program, without having to fully install the GroupWise Connector.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

MORE INFORMATION

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.

This following instructions are based on the assumption that:
  • The Calendar Connector, and the GroupWise Connector are currently installed, and working on the Exchange Server 5.5 computer.
  • You are using these instructions to disable the GroupWise Connector on the Exchange Server 5.5 computer.
  • You continue to use the Calendar Connector on the Exchange Server 5.5 computer, which now uses a GroupWise Connector that is properly configured on an Exchange 2000 server.
To use the Calendar Connector Service that is installed on Exchange Server 5.5 with the GroupWise Connector that is installed on Exchange 2000, you must edit the registry on the Exchange Server 5.5 computer.
  1. Start Registry Editor (Regedt32.exe).
  2. Locate the following registry key:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeCalCon\Parameters

  3. On the Edit menu, click Add Value, and then type GWISECAL.0001.API_IN Directory in the Value Name field. Set the Data Type field to REG_SZ, and then click OK. In the String field, type:

    \\Exchange2000ServerName\gwrouter\togwise

  4. Again, in Regedt32.exe, in the same key, on the Edit menu, point to Add Value, and then type GWISECAL.0001.API_OUT Directory in the Value Name field. Set the Data Type field to REG_SZ, and then click OK. In the String field, type:

    \\Exchange2000ServerName\gwrouter\freebusy

    NOTE: In steps 3 and 4, be sure to replace Exchange2000ServerName with the actual name of the Exchange 2000 server that is running the GroupWise Connector.
  5. Quit Registry Editor.
  6. On the Exchange 2000 server that is running the GroupWise Connector, create a network share, type Gwrouter for the name, and have it point to the Exchsrvr\Conndata\Gwrouter folder of the Exchange 2000 server. Give the Calendar Connector Service account on the Exchange Server 5.5 computer full control of this share.
  7. Start the connector services on both servers. Ensure that:
    • The Connector for Novell GroupWise on the Exchange 2000 server is started.
    • The GroupWise Connector on the Exchange Server 5.5 computer is disabled.
    • The Calendar Connector Service on the Exchange Server 5.5 connector is started.
After you add the two registry keys, the Calendar Connector routes, and receives free-and-busy requests by means of the Exchange 2000 Gwrouter share, rather than by means of its own local Gwrouter queues.
Modification Type:MinorLast Reviewed:4/25/2005
Keywords:kbfix kbhowto KB258095
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