Description of the update for Lync Server 2013, Web Components: August 2013

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

There are no prerequisites for installing this update.

Registry information

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

Restart requirement

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

Update package installation information

To install this update package, install the update on computers that are running one of the following server roles:

• Lync Server 2013 - Standard Edition Server
• Lync Server 2013 - Enterprise Edition - Front End Server
• Lync Server 2013 - Director Server

Removal information

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

Sometimes, when you try to uninstall this update, you are prompted for the source CD. If this behavior occurs, insert the source CD, or provide the path on which 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 applied to the ApplicationHost.config file:

• Duplicate entries are created in the 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 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>
• 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, 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 do this, 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 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, and then restart IIS.