Lync 2010 Client
Lync 2010 Hotfix KB 2815347 (32 bit)
http://www.microsoft.com/en-us/download/details.aspx?id=25055
Lync 2010 Hotfix KB 2815347 (64 bit)
http://www.microsoft.com/en-us/download/details.aspx?id=14490
This cumulative update fixes the issue that is described in the following Microsoft Knowledge Base (KB) article:
- 2832123 You cannot start Lync 2010 after you install the March 2013 cumulative update for Lync 2010 in Windows XP Pro or Windows Server 2003
Lync Attendee Client
Microsoft Lync 2010 Attendee - User Level Install
http://www.microsoft.com/en-us/download/details.aspx?id=15755
Lync 2010 Attendee Hotfix KB 2815352 (User level install)
http://www.microsoft.com/en-us/download/details.aspx?id=22157
This update improves the reliability, stability, and performance of Lync 2010 Attendee User level installation
Microsoft Lync 2010 Attendee - Admin Level Install
http://www.microsoft.com/en-us/download/details.aspx?id=23396
Lync 2010 Attendee Hotfix KB 2815354 (Admin level install)
http://www.microsoft.com/en-us/download/details.aspx?id=13365
This cumulative update improves the reliability, stability, and performance of the Lync 2010 Attendee - Administrator level installation.