How to specify environment when using custom interface

Hi

this thread is almost dealing with my task.

https://forums.ni.com/t5/NI-TestStand/How-to-specify-environment-when-using-custom-OI/m-p/3617452

BTW my task is quite different. I am NOT using the ApplicationManager. So commandline will not work at all.

I am initializing the engine in old school:

HRESULT res = m_engine.CreateInstance("TestStand.Engine");

is there any change to work with environments?

Regards

Juergen