Here is the scenario: I have an orchestration that uses an expression shape to call a .NET assembly. This custom assembly needs to reference a configuration file that is different for 3 environments (development, test, and production). I would like for my custom assembly to load a type of config file at runtime. How can I load a configuration file since neither the orchestration or class library have their own app.config files? Should I just create and use an XML file to store the settings? Thanks for any responses.