Unable to View a Shared Desktop or Application in a Microsoft Lync 2013 Meeting

Recently while using Microsoft Lync 2013 to view a shared desktop or application in a meeting, I experienced an issue where I could only see a blank white screen as shown in the image below:


Event ID 301, Microsoft Office 15 Alerts was logged in the event log with the following details:

Microsoft Lync CLSID: {00000000-0000-0000-0000-000000000000} CATID: {9B179D6E-9BDB-454b-BE3D-89F9A792BD39} The ActiveX Compatibility setting disabled loading this object to help protect your security. P1: 1073695582 P2: 15.0.4420.1017 P3: P4: 0x80004005


I tracked this down to the following registry key: “HKEY_LOCAL_MACHINESOFTWAREMicrosoftInternet ExplorerActiveX Compatibility{00000000-0000-0000-0000-000000000000}”


I backed up this registry key and then removed it using PowerShell:

Remove-Item -Path 'HKLM:\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{00000000-0000-0000-0000-000000000000}'


Now the registry key is gone:


Then the issue with viewing a shared desktop or applicaiton in Lync 2013 was resolved: