Blog Post: Lync Server 2010 Hotfix KB 2493736

 

Updates that are released for Lync Server 2010

• Update for Administrative Tools

  2467771 (http://support.microsoft.com/kb/2467771/ ) Description of the update package for Lync Server 2010, Administrative Tools: January 2011

• Update for Core Components

  2500444 (http://support.microsoft.com/kb/2500444/ ) Description of the cumulative update for Lync Server 2010, Core Components: April 2011

• Update for Conferencing Server

  2514975 (http://support.microsoft.com/kb/2514975/ ) Description of the cumulative update for Lync Server 2010, Conferencing Server: April 2011

• Update for Web Components Server

  2500441 (http://support.microsoft.com/kb/2500441/ ) Description of the update package for Lync Server 2010, Web Components Server: April 2011

• Update for Standard/Enterprise edition Server

  2500442 (http://support.microsoft.com/kb/2500442/ ) Description of the update for Lync Server 2010: April 2011

• Update for Web Conferencing Server

  2530592 (http://support.microsoft.com/kb/2530592/ ) Description of the cumulative update for Lync Server 2010, Web Conferencing Server: April 2011

• Update for Mediation Server

  2502810 (http://support.microsoft.com/kb/2502810/ ) Description of the cumulative update for Lync Server 2010, Mediation Server: April 2011

• Update for Unified Communications Managed API 3.0 Runtime

  2500448 (http://support.microsoft.com/kb/2500448/ ) Description of the cumulative update for Lync Server 2010, Unified Communications Managed API 3.0 Runtime: April 2011

More detail here

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