We need to install of ArcGIS Pro Add-In silently and I found this page : https://gis.stackexchange.com/questions/309009/silent-install-of-arcgis-pro-add-in
I added the registry key


Added subfolder with AddInInfo id as name.

The .esriAddInx is digitally signed .
Try to run the installation silently, but it’s still asking for user interaction.

What am I doing wrong?
Kind regards,
Steven