Where do the IIS7 stores it configuration setting?

IIS 7 stores its configuration settings primarily in XML files, with the main configuration file being applicationHost.config, located in the %windir%\System32\inetsrv\config directory. Additionally, individual site and application settings can be stored in web.config files, which are located in the respective directories of the web applications or sites. These configuration files define settings for application pools, sites, and various server-level configurations.