I have a .NET class library that provides a set of helper functions that are used by several Web Services. This class library must store a single setting, specifically, a co
I think you're looking for:
ConfigurationManager.OpenExeConfiguration(string exePath)
or
ConfigurationManager.OpenMappedExeConfiguration(
new ExeConfigurationFileMap() {
ExeConfigFilename = path + "app.config"
}, ConfigurationUserLevel.None);
Which returns a Configuration object. MSDN doc on ConfigurationManager
Try this question for how to get the DLL path.