Description of the update for Office Communications Server 2007 R2, Group Chat Client: May 2010

This article describes the Microsoft Office Communications Server 2007 R2 Group Chat Client issues that are fixed in the update package that is dated May 2010.

• The issues that the update fixes.
• The prerequisites for installing the update.
• Whether you must restart the computer after you install the update.
• Whether the update is replaced by any other update.
• Whether you must make any registry changes.
• The files that the update contains.

Issues that this hotfix package fixes

• 981439  (http://support.microsoft.com/kb/981439/ ) Server depredation occurs when group chat users change chat rooms by using Office Communications Server 2007 R2 Group Chat clients
• 981441  (http://support.microsoft.com/kb/981441/ ) The group chat client crashes when you try to set the value of the background color of the group chat console to transparent
• 982129  (http://support.microsoft.com/kb/982129/ ) You cannot sign in with Group Chat Client or with Group Chat Admin Tool if Group Chat Server is deployed on a Windows Server 2008 R2 domain controller

This update also includes the following previously released updates:

• 973321  (http://support.microsoft.com/kb/973321/ ) Office Communications Server 2007 R2, Group Chat Client prevents Windows XP or Windows Server 2003 from logging off
• 973337  (http://support.microsoft.com/kb/973337/ ) A peer-to-peer file transfer fails between two Microsoft Office Communications Server 2007 R2 Group Chat clients
• 972945  (http://support.microsoft.com/kb/972945/ ) The Office Communications Server 2007 R2 Group Chat Client does not support user colors
• 973316  (http://support.microsoft.com/kb/973316/ ) Error message when you try to make a connection in an Office Communications Server 2007 R2 Group Chat client for the first time: "The domain_name domain is not available"
• 972947  (http://support.microsoft.com/kb/972947/ ) An update is available for Office Communications Server 2007 R2 Group Chat clients to improve the performance for chat rooms
• 973318  (http://support.microsoft.com/kb/973318/ ) The message in the input panel does not match the message that you sent in Microsoft Office Communications Server 2007 R2 Group Chat Client

Update package information

The following file is available for download from the Microsoft Download Center:
Download the MgcClient.msp package now. (http://go.microsoft.com/fwlink/?LinkId=159915)
Release Date: May 2010

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Important The build of this update is 3.5.6907.200. This build fixes an issue in build 3.5.6907.198 which was released in April 2010. The issue prevents build 3.5.6907.198 from being uninstalled. If you have already installed build 3.5.6907.198 and want to install build 3.5.6907.200 or a later build, follow these steps:

1. Completely uninstall the Group Chat Client.
2. Install the release version of the Group Chat Client.
3. Install build 3.5.6907.200 or a later build.

Prerequisites

There are no prerequisites for installing this update.

Restart requirement

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

Replacement information

This update of build 3.5.6907.200 is a refresh build that replaced previously-released build 3.5.6907.198 in April 2010.

Registry information

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

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 issues that are listed in this article.

After the update is installed, the global version of this update has the file attributes, or a later version of the file attributes, that are listed in the following table:

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: