DLL-with-configuration-file带配置文件的dll
http://www.codeproject.com/Tips/199441/DLL-with-configuration-file
Accessing Properties.Settings userSettings from a DLL
http://stackoverflow.com/questions/6445867/accessing-properties-settings-usersettings-from-a-dll
原文：http://www.cnblogs.com/chucklu/p/4031514.html