ASP.NET Configuration Tutorials
ASP.NET provides a convenient, extensible, XML-based mechanism for configuring ASP.NET and applications that run under it. ASP.NET automatically detects changes to the web.config file and transparently restarts the application; there is no need to restart IIS. Learn what is web.config file and how to use it, accessing web.config configuration elements, adding custom application settings in web.config, adding your own configuration elements to web.config and encryption of web.config.