Opens the Web-application configuration file as a System.Configuration.Configuration object using the specified virtual path, site name, and location to allow read or write operations.
A System.Configuration.Configuration object.
To obtain the System.Configuration.Configuration object for a resource, your code must have read privileges on all the configuration files from which it inherits settings. To update a configuration file, your code must additionally have write privileges for both the configuration file and the directory in which it exists.