Once I got the problem VI out of there, my code was still not "working" as I expected. I am using the "Application Directory" to get a path to a config file, which in development environment starts at the folder the .lvproj is in, and in the runtime environment starts at the path the .exe is in. Unfortunately, when TestStand is the executable, it starts somewhere in the TestStand installation directory which I did not expect, since my LV code is in a .lvproj! I'll start a separate topic to discuss this "feature" 🙂