ad extension on Samba 4 active directory domain controler

With the help of the README I managed to install the kopano schemes in my Samba 4 domain controller. I had to add
dsdb:schema update allowed = true
in /etc/samba/smb.conf
But now I’m stuck. The README says I have to install the KopanoADS-1.0.62.msi on every RSAT machine. Where do I find that file?
Kind regards

Hello @johann.schnagl, customers with a valid subscription kann download that file from

If you don’t have a subscription you could still compile the extension by yourself. The source can be found at We currently do not have public instructions for this, but already received a guide that we want to incorporate into our admin manual.

Thank you
I solved the topic unsing univention.
Kind regards