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Posted by on Feb 25, 2014 in Skype for Business® (Lync®) | 0 comments

Office 2013 SP1 fixes annoying UISuppressionMode bug for Lync

Office 2013 SP1 fixes annoying UISuppressionMode bug for Lync

Good News for Lync Developers!

Office 2013 SP1 is out, and with it comes a fix to an annoying bug.

The full list of fixes is on this Excel speadsheet, but the one I noticed was this one:

When the Lync client is used by a 3rd party application as an out-of-proc COM server showing no Lync UI (“UI suppression mode”), the Lync process does not exit after the app is closed.

If this is what I think it is, it’s a welcome fix for a common problem.

UISuppressionMode is used when replacing the Lync Client with full-screen applications which provide a immersive experience. The Lync.exe process not terminating has been a common issue, and one which in the past we’ve had to solve by checking for and then killing the process. If this has now been sorted out, that’s great.


There’s a bunch of other changes to the other Office products, including a SP for Sharepoint. For the Exchange guys, there’s an SP1 for you too – there’s a good TechNet blog detailing the changes in Exchange Server SP1.

Here’s the 32-bit version of Office 2013 SP1, and the the 64-bit SP1 version.


Happy Upgrading!

Written by Tom Morgan

Tom is a Microsoft Teams Platform developer and Microsoft MVP who has been blogging for over a decade. Find out more.
Buy the book: Building and Developing Apps & Bots for Microsoft Teams. Now available to purchase online with free updates.



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