For those who have come across one of my earlier posts about:
OCS 2007 R2 Desktop Share issue with Windows 7 and UAC
… I finally had some time over this weekend to try testing the same scenario with Microsoft Lync and the results were more or less the same with the only difference being a new warning message is displayed in the Lync client. The following screenshots demonstrates the problem:
A desktop share is initiated:
The shared desktop loads:
Control is given to the person viewing the shared desktop and he proceeds to open the registry editor:
Opening the registry triggers UAC so the person viewing the shared desktop sees the following message:
Sharing is currently paused.
The person sharing their desktop sees the following:
Once the user sharing their desktop proceeds with selecting Yes to UAC, the shared screen loads:
However, the person viewing the shared desktop can no longer move the mouse. The person sharing the desktop can reclaim control:
Then give control again:
While the person viewing the desktop can move the mouse again, they will find that they cannot move or interact with the registry editor. What’s different about Lync Server 2010 and OCS 2007 R2 with this issue is that in Lync, you will see the following warning message in the instant message window of the person sharing their desktop:
Share control is disabled for elevated applications.
Clicking on the text will show the following message:
There are applications running at an elevated privilege on your desktop. A participant in control will not be able to control these applications.
As with OCS 2007 R2, disabling UAC appears to fix this problem but it’s probably not the best solution due to security concerns so I will update this post if I ever figure out if there is a way to get around this without disabling UAC.