Environment

• Pythonnet version: 2.3.0
• Python version: 3.6
• Operating System: Win10

Details

• Trying to get access to a dynamic typed System.__ComObject
• This is also specifically with the application Rhinoceros 6 which is using a C++ app that is hosted on .NET so it is a very specific use case
• However, it does work in IronPython and in C#

import clr
import System
apptype = System.Type.GetTypeFromProgID("Rhino.Application")
rhino = System.Activator.CreateInstance(apptype)
rhino.Visible = 1
plugin = rhino.RunScript("_-SampleCsRhinoCommand", 0)

Also seems odd that rhino.Visible = 1 does not throw an AttributeError, but also doesn't make the application visible.

Thanks!