How to use C# Class Libraries (dll) in Python

Hi,


first of all I do not have an option to unblock the file.
Should I be worried?

What I used when creating the class library was this:
image

Rhino targets .Net 4.8 as I can see here:

From my class library I see that it is .Net 6, which then would explain it not working.
When I try to create a new one, I see that the possibilities are quite unsuitalbe, right?
image
My question now would be:
How do I first of all create the right project?