Description of the update for Lync 2010: November 2011

Applies to: Lync 2010


This article describes the Microsoft Lync 2010 issue that is fixed in the update that is dated November 2011.
This article describes the following aspects of the update package:
  • The issues that the update package fixes.
  • The prerequisites for installing the update package.
  • Whether you must restart the computer after you install the update package.
  • Whether the update package is replaced by any other update package.
  • Whether you must make any registry changes.
  • The files that the update package contains.


Issue that this update fixes

This update package also fixes the issue that is previously documented in the following Microsoft Knowledge Base (KB) article:
  • 2644148 A server rejects the INFO request from a client by using a 401 Unauthorized response in a Lync Server 2010 environment


Update package information

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 update 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: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.


There are no prerequisites for installing this update package.

Restart requirement

You have to restart the computer if certain dependencies in Lync 2010 are still running when the update is applied. For example, if you have Office Outlook or Lync 2010 running when the update is applied, you have to restart the computer.

Update replacement information

This update does not replace a previously released update.

Registry information

You do not have to make any changes in the registry to apply this update.

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:
File nameFile versionFile sizeDateTimePlatform
Autohelper4.0.7577.25338,67230-Mar-1116:45Not Applicable
File_meetingjoinaxoc4.0.7577.405352,00021-Nov-117:56Not Applicable
File_meetingjoinaxoc644.0.7577.4053294,17621-Nov-119:53Not Applicable


For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates