Description of Lync 2010 Group Chat SDK: December 2011

Update package information

The following file is available for download from the Microsoft Download Center:

Download the UCGCSDK.msi package now.

Release Date: December 2011

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

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Prerequisites

Please make sure that the following services are running before you install the update:

• Lync Server 2010 Group Chat Server - Lookup service / Channel service
• Lync Server 2010 Group Chat Compliance Server - Compliance Service

Additionally, install the update for Unified Communications Managed API 3.0 Runtime before you install the update.

For more information about the update for Unified Communications Managed API 3.0 Runtime, click the following article number to view the article in the Microsoft Knowledge Base:

2493736 Updates for Lync Server 2010

Restart requirement

You do not have to restart the computer after you apply this update package.

Replacement information

This update does not replace a previously released updates.

Registry information

To use one of the updates in this package, you do not have to make any changes to the registry.

Update package installation information

Install this update for Lync Server 2010 Group Chat Server

1. Make sure Lync Server 2010 Group Chat servers are installed, configured and functioning correctly. Lync Server 2010 Group Chat servers include Channel Server, Lookup Server and Compliance Server.
2. Remove the previously installed version of Lync 2010 Group Chat Server SDK before you install this package.
3. Stop the Channel service and stop the Lookup service that is currently running.
4. To apply this update, install this update by running UCGCSDK.msi on all of the computers that are in any of the Group Chat Server roles.
5. On the Chat server, start the Server Config Tool as follows:
   • Start menu: All Programs, Administrative Tools, Server Config Tool
     
   • File location: <driver letter>:\Program Files\Microsoft Lync Server 2010\Group Chat Server\ServerConfigTool.exe.
6. Click Yes when you receive the following message, and the Server Config Tool upgrades the existing Group Chat database schema. Additionally, the Server Config Tool changesthe server's configuration files to reflect these changes.
   The Group Chat servers installed on this computer require an upgrade to QFE1. You must have read/write permission to the server's configuration files to complete this task.
   
   Note You must shut down all Group Chat services before you perform this upgrade.
7. Restart the Channel service and restart the Lookup service and then restart the Compliance Server service.

Workaround on how to add a new server into an existing pool after you install this update

Only the MSI update files (.msp files) without a complete installer are released in the update package. After you upgraded all Lync Server 2010 Group Chat servers to this update, follow these steps to add another Group Chat server into the existing pool:

1. Set up Lync Server 2010 Group Chat Server (Channel Server and Lookup Server) on a new database by using the same service accounts as the existing pool. Refer to Lync Server 2010 deployment documentation for more information about how to set up Lync Server 2010 Group Chat server.
2. Upgrade to the new Lync Server 2010 Group Chat installation.
3. Stop both the Channel service and the Lookup service.
   
4. Run the following command to reconfigure the new servers to point to the Group Chat database pool.

   <driver letter>:\Program Files\Microsoft Lync Server 2010\Group Chat Server\ServerConfigTool.exe /i 

Note All services start automatically after the servers are reconfigured.

Removal information

After you apply this update, it cannot be uninstalled. If you uninstall this update, the Channel service and the Lookup service does not start. You may receive the following error message in the event log.

This update package may not contain all the files that you must have to fully update a product to the latest build. This update package contains only the files that you must have to correct the issues that are listed in this article.

File information

This update may not contain all the files that you must have to fully update a product to the latest build. This update contains only the files that you must have to correct the issue that listed in this article.

The global version of this update package uses a Microsoft Windows Installer package to install the update package. The dates and the times for these files are listed in Coordinated Universal Time (UTC) in the following table. When you view the file information, the date is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.