Application sharing session does not work when it includes more than 200 users in Lync 2010

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Article ID: 2497111 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario. You use Microsoft Lync 2010 to start a conference that includes more than 200 users. You try to initiate an application-sharing session. In this scenario, you cannot share an application unless the Application Sharing multipoint control unit service is restarted.

Note This issue occurs if the conference is hosted in a Lync Server 2010 Standard Edition pool. If the conference is hosted in a Lync Server 2010 Enterprise Edition pool, application sharing works after several minutes delay.

CAUSE

This issue occurs because an access violation occurs in the Application Sharing multipoint control unit.

RESOLUTION

To resolve this issue, install the following cumulative update:
2514975 Description of the cumulative update for Lync Server 2010, Conferencing Server: April 2011

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Properties

Article ID: 2497111 - Last Review: May 4, 2011 - Revision: 2.0
APPLIES TO
  • Microsoft Lync Server 2010 Standard Edition
Keywords: 
kbqfe kbfix kbsurveynew kbexpertiseinter kbhotfixrollup KB2497111

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