Calling a DLL with reflection and configuration dependencies

[Master]

I have a service that calls methods in other libraries through reflection. However, some of these libraries have external dependencies such as app.config files that it sometimes uses to perform its work.Is there any best practise on how to do this, or any libraries that can help with this kind of situation?For example: if my service should call external dll on method foo(), foo() then uses app.config to get a list of strings, but crashes when used directly with reflection.