Update 2850074 for Lync 2013: June 2014

Applies to: Microsoft Lync 2013


This article describes update 2850074 for Microsoft Lync 2013 that was released on June 2014. This update version is 15.0.4623.1000.

Note To determine the version of Lync 2013, follow these steps:
  1. In Lync 2013, click the Options button.
  2. On the Help menu, click About Microsoft Lync.

Issue that the update fixes

This update resolves the following issue:
2962975 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:
2881013 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

    BUG #: 3429247 (Office15)
  • Lync 2013 crashes in a meeting. This issue occurs when a meeting item is changing in the meeting list view model.

    BUG #: 3429789 (Office15)
  • 2968251 Update adds an upload notification when you upload PPT in a meeting in Lync 2013
  • 2968248 Lync 2013 video quality is low when you scale up the size of the video window in UI suppression mode
  • 2968239 "An error occurred" error when a Lync 2013 user joins a Lync Online meeting that is created by a non-federated user
  • 2962986 Lync 2013 takes a long time to sign in after it is disconnected from a front-end server
  • 2962982 Caller's display name is not in the toast notification when you receive a call in Lync 2013
  • 2962980 Lync 2013 prompts you for Exchange credential in an Exchange deployed environment

More Information

How to obtain and install the update

The following file is available for download from the Microsoft Download Center:

Download Download the 32-bit Lynchelploc update package now.

Download Download the 64-bit Lynchelploc update package now.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
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Restart information

You do not have to restart the computer after you apply this update.
The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office. For more information about the Office System TechCenter, go to the following Microsoft website: