I have a static class, containing vaious settings fon .NET web api 2 (mostly parameters, links, flags etc.). Those parameters are filled from XML - file on startup. The task is to make them changeable through website. As I understand it, when the app is running on the IIS App pool, it creates several independent threads (as in several running apps), so even if I change the setting in the file, no other thread will pick this change up.

The question: Is there a way to somehow notifty the entire app pool to re-read the settings from file, but do it once? Maybe with using a "last update date"?