Running a function on WCF start up

The easiest way is to create an App_Code folder underneath your WCF project root, create a class (I’ll call it Initializer but it doesn’t matter. The important part is the method name) like so:

public class Initializer
{
    public static void AppInitialize()
    {
        // This will get called on startup
    } 
}

More information about AppInitialize can be found here.