Execute this fix to prevent an known error that appears when there are some wrong registry keys set that prevent the Outlook Add-in from working correctly. (see image at bottom)
These keys are being created by some third party software. Running the fix will not have any side effects on other applications.
This fix requires administrator rights and consists of a Console Application.
If you have to run the fix every time you restart your computer, you may set it to be automatically started at startup. (see https://www.makeuseof.com/tag/how-to-add-programs-to-your-startup-on-windows-vista-7-8/)
The Add-In will throw this error when encountering ghost registry keys: