April 2016 cumulative update 4.0.7577.728 for Lync Server 2010, Web Components Server

Release Date: April 2016

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Prerequisites

There are no prerequisites for installing this cumulative update.

Restart requirement

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

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 WebComponents.msp package on computers 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 feature in Control Panel.

When you uninstall this cumulative update, insert the source CD or provide the path where the source files can be found if you are prompted to do this.

After you uninstall this update package, Internet Information Services (IIS) may stop running. This issue occurs because the following changes are applied to the ApplicationHost.config file when you uninstall this update package.

Note The ApplicationHost.config file is located in the following directory:

• Duplicate entries are created in the two sections after the <location path="Lync Server Internal Web Site" overrideMode="Allow"> and <location path="Lync Server External Web Site" overrideMode="Allow"> tags.
  
  After the duplicate entries are created, these 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>
• The following 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, follow these steps:

1. Remove the duplicate entries in the two sections after the <location path="Lync Server Internal Web Site" overrideMode="Allow"> and <location path="Lync Server External Web Site" overrideMode="Allow"> tags. After you remove the entries, the two sections 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 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, and then restart IIS.