Description of the update package for Lync Server 2010, Web Components Server: July 2011

Microsoft Download Center

The following file is available for download from the Microsoft Download Center:
Download the WebComponents.msp package now.
Release Date: July 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

There are no prerequisites for installing this hotfix.

Restart requirement

You may have to restart the computer after you apply this update.

Hotfix replacement information

This update replaces the following previously released update:

2500441 Description of the update package for Lync Server 2010, Web Components Server: April 2011

Registry information

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

Update package installation information

To install this update package, install the KB2571547-x64-WebComponents.msp package on computers in a network that are running the following platforms:

• Lync Server 2010 - Standard Edition
• Lync Server 2010 - Enterprise Edition - Front-end

Removal information

To remove this update package, use the Add or Remove Programs item in Control Panel.

You may be prompted for restart your computer after you uninstall the update for Lync Server 2010, Web Components Server.

Sometimes, when you try to uninstall the update package, you are prompted for the source CD. If this behavior occurs, insert the source CD, or provide the path where the source files can be found.

After you uninstall this update package, Internet Information Services (IIS) may stop running. This issue occurs because the ApplicationHost.config file is changed when you uninstall this update package.

Note The ApplicationHost.config file is located in the following directory:
The following changes are added to the ApplicationHost.config file:

1. Duplicate entries are created in the sections after <location path="Lync Server Internal Web Site" overrideMode="Allow"> and <location path="Lync Server External Web Site" overrideMode="Allow">.
   
   After you uninstall this update package, the two sections resemble the following:
   
   
   <location path="Lync Server Internal Web Site" overrideMode="Allow">
   <system.webServer>
   <security>
   <authentication>
   <windowsAuthentication/>
   <windowsAuthentication/>
   </authentication>
   <authentication/>
   </security>
   <security/>
   </system.webServer>
   <system.webServer/>
   </location>
   <location path="Lync Server External Web Site" overrideMode="Allow">
   <system.webServer>
   <security>
   <authentication>
   <windowsAuthentication/>
   <windowsAuthentication/>
   </authentication>
   <authentication/>
   </security>
   <security/>
   </system.webServer>
   <system.webServer/>
   </location>
2. The following two entries are created before the </configuration> tag at the end of the file:
   • <location path="Lync Server Internal Web Site" overrideMode="Allow"/>
   • <location path="Lync Server External Web Site" overrideMode="Allow"/>

To resolve this issue where IIS is restarting, follow these steps:

1. Remove the duplicate entries in the two sections mentioned earlier. After you do this, the two sections should resemble the following:
   
   
   <location path="Lync Server Internal Web Site" overrideMode="Allow">
   <system.webServer>
   <security>
   <authentication>
   <windowsAuthentication/>
   </authentication>
   </security>
   </system.webServer>
   </location>
   <location path="Lync Server External Web Site" overrideMode="Allow">
   <system.webServer>
   <security>
   <authentication>
   <windowsAuthentication/>
   </authentication>
   </security>
   </system.webServer>
   </location>
2. Delete the following two entries at the end of the ApplicationHost.config file:
   • <location path="Lync Server Internal Web Site" overrideMode="Allow"/>
   • <location path="Lync Server External Web Site" overrideMode="Allow"/>
3. Save the ApplicationHost.config file.
4. Restart IIS.

File information

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 resolve the issues that are listed in this article.

The global version of this hotfix package uses a Microsoft Windows Installer package to install the hotfix 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.