Im trying to add an app.config file to my DLL, but all attempts have failed.
According to MusicGenesis in \'Putting configuration information in a DLL\' this should
Since the assembly resides in a temporary cache, you should combine the path to get the dll's config:
var appConfig = ConfigurationManager.OpenExeConfiguration( Path.Combine(Environment.CurrentDirectory, Assembly.GetExecutingAssembly().ManifestModule.Name));