This class is used automatically when you use the WindowsAuthenticationModule class. ASP.NET uses FileAuthorizationModule to determine whether a specified file operation should be allowed or denied, based on the currently authenticated NT user account (and using Access Control Lists (ACLs)).

public sealed class FileAuthorizationModule : System.Web.IHttpModule {
// Public Constructors
   public FileAuthorizationModule( );
// Public Instance Methods
   public void Dispose( );                           // implements System.Web.IHttpModule
   public void Init(System.Web.HttpApplication app); // implements System.Web.IHttpModule
}