Lync 2013 Client June Update and Security Updates (15.0.4623.1000)

This update resolves the following issue:


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Lync 2013 starts and prompts you for credentials when you join meeting without account that is provisioned for Lync 2013

Additionally, this update also resolves the following issues:

Note To resolve the following issues, after you install update 2850074, you must install the security update 2881013:


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MS14-036: Description of the security update for Microsoft Lync 2013: June 10, 2014

· Lync 2013 crashes in a large meeting that many users have joined. Additionally, you may receive the following error message:

Problem signature
Problem Event Name: APPCRASH
Application Name: lync.exe
Application Version: Version number
Application Timestamp: Value
Fault Module Name: UccApi.dll
Fault Module Version: Version number
Fault Module Timestamp: Value
Exception Code: c0000005
Exception Offset: 001195a7
OS Version: Version number
Locale ID: 1033


· Lync 2013 crashes in a meeting. This issue occurs when a meeting item is changing in the meeting list view model.

· 2968251( )

Update adds an upload notification when you upload PPT in a meeting in Lync 2013

· 2968248

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Lync 2013 video quality is low when you scale up the size of the video window in UI suppression mode

· 2968239

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"An error occurred" error when a Lync 2013 user joins a Lync Online meeting that is created by a non-federated user

· 2962986

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Lync 2013 takes a long time to sign in after it is disconnected from a front-end server

· 2962982

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Caller's display name is not in the toast notification when you receive a call in Lync 2013

· 2962980

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Lync 2013 prompts you for Exchange credential in an Exchange deployed environment