Unresponsive Windows taskbar or user shell folder permissions issues with ClickShare Desktop App Calendar integration

Article number: [6077]

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We have reports about users experiencing issues with the ClickShare Desktop App. When the App starts to read the Outlook Calendar, it can trigger the following issues:
  • The Windows Start Menu does not respond to mouse clicks or the Windows key.
  • Windows Search does not respond to mouse clicks on pressing the Search button or Windows+S key.
  • Microsoft Outlook can’t connect and sync anymore.
  • Microsoft OneDrive can’t connect and sync anymore.
More investigation has shown that the ClickShare Desktop App triggers a bug in the Microsoft Office API (MAPI). This bug removes application packages’ permissions from the following Registry path: 
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
The ClickShare Desktop App reads the Microsoft Outlook Calendar via the Microsoft Outlook API for the One-Click-Join feature. The One-Click-Join feature can be disabled through the Calendar Integration toggle in the app settings.

To resolve this issue:

  • Ensure the ClickShare Desktop App is updated to version 4.27.2 or higher.
  • Ensure the Calendar integration is disabled (default disabled as of 4.27.2).
  • Follow the guidance provided by Microsoft here to recover the user profile.
In case the issue still remains, a manual correction of the user profile might be required. From the ClickShare Desktop App 4.27.2, the Calendar integration is disabled by default. That way, we guarantee a smooth user experience again. We have kept the possibility for you to turn the Calendar Integration back on the settings. However, be aware that this might trigger the issue so caution is advised until the bug is fixed in the Microsoft Office API (MAPI).


Last updated Sep 4, 2023