Configuration level File name File description Server Machine.config The Machine.config file contains the ASP.NET schema for all of the Web applications on the server. This file is at the top of the configuration merge hierarchy. IIS ApplicationHost.config ApplicationHost.config is the root file of the IIS 7.0 configuration system. It includes definitions of all sites, applications, virtual directories, and application pools, as well as global defaults for the Web server settings. It is in the following location: %windir%\system32\inetsrv\config Root Web Web.config The Web.config file for the server is stored in the same directory as the Machine.config file and contains default values for most of the system.web configuration sections. At run time, this file is merged second from the top in the configuration hierarchy. Web site Web.config The Web...