Memory leak occurs during a video call or when you rest the mouse pointer on a video icon in Lync 2013

Symptoms
Assume that you install Microsoft Office 2013 Service Pack 1 (SP1) or the November, 2013 update for Lync 2013 on a computer. The computer uses accelerated H.264 video encoding based on Intel chipsets that have HD Graphics 2000 or a later version. Then, you make a video call or you rest the mouse pointer on a video icon in Lync 2013. In this situation, at least 60 megabytes (MB) of memory will leak in Lync 2013. The memory leak will persist until you restart Lync 2013.
Cause
This issue occurs because the Hardware Media Foundation Transform (HMFT)-related objects are not freed in each capability query. Additionally, Lync 2013 creates an encoder instance that starts another query when you rest the mouse pointer on a video icon.
Resolution
To resolve this issue, install the following cumulative update:
2863908 Description of the Lync 2013 update 15.0.4569.1508: March, 2014
More information
To determine whether your computer may be encountering this issue, run dxdiag to start the DirectX Diagnostic Tool, and then click the Display tab within the tool. Check the Name of your display card. The following screenshot is an example of what you might see:



For more information about Office 2013 Service Pack 1 (SP1), click the following article number to view the article in the Microsoft Knowledge Base:
2817430 Description of Microsoft Office 2013 Service Pack 1 (SP1)
For more information about the November, 2013 update for Lync 2013, click the following article number to view the article in the Microsoft Knowledge Base:
2825630 Description of the Lync 2013 update 15.0.4551.1005: November 7, 2013
Properties

Article ID: 2933495 - Last Review: 03/12/2014 05:51:00 - Revision: 3.0

Microsoft Lync 2013

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