Zenon V11 VSTA Addin is missing

Zenon V11 VSTA Addin is missing


I recently installed Zenon V11 in a Virtual Machine.
After installation, I had some troubles, so I had to uninstall and reinstall Zenon.

Now, I wanted to enable the VSTA-Plugin for the Engineering Studio. This can be done in the Startup-Menu under Application => Options => Enable VSTA.
I think normally, all required components will be installed automatically when enabling this checkbox. But in my case, nothing was installed. Also, the checkbox was deselected when exiting the dialog .

So I installed VSTA manually from C:\Program Files (x86)\Common Files\COPA-DATA\OptionalComponents\VSTA\VSTA AddOn.exe

Now the checkbox remains checked, but VSTA is not available in the Engineering Studio.

What do I need to do to enable VSTA?

Thanks in advance!