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I have a UCMA 4.0 program, handles IM calls supports Application Sharing. It always worked fine for me on Lync 2013 conversations.
Recently I upgraded my program to UCMA 5.0, using Skype for Business instead of Lync 2013.

Strangely, since I did, Application Sharing doesn't work for me anymore. The moment I confirm the Desktop Sharing action – I get this error:

"Screen presenting isn't supported with this contact." , at the bottom of the conversation window.

My code is :

endpoint.RegisterForIncomingCall<ApplicationSharingCall>(ApplicationSharingCall_Received);

Good scenario is: once I confirm the Desktop Sharing action - ApplicationSharingCall_Received event is raised.

Trying to debug it, I realized that no matter what I do, the breakpoint on this event is never hitted, in contrast to the old version.

It seems like I miss some changes between Lync 2013 to SFB version.
Is there any other event I've never heared about?
Does anyone have any other suggestion for me?

Camilo Terevinto
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Tali B.
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    I don't have an answer, but I do have a suggestion. Keep using UCMA 4.0. I have never seen a compelling reason to use UCMA 5.0 myself. UCMA 4.0 apps work fine on SFB. – Shane Powell Aug 21 '16 at 19:51

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