This class is responsible for finding an authentication module to authorize access to network resources. You do not need to use this class unless you have defined your own authentication scheme. By default, Basic, Digest, NTLM, and Kerberos authentication schemes are supported. This, for the most part, covers the needs of 99.9% of all .NET programmers in the world. Kerberos is not supported on Windows 95/98 or on Windows Me..

public class AuthenticationManager {
// Public Static Properties
   public static IEnumerator RegisteredModules{get; }
// Public Static Methods
   public static Authorization Authenticate(string challenge, WebRequest request, 
        ICredentials credentials);
   public static Authorization PreAuthenticate(WebRequest request, ICredentials credentials);
   public static void Register(IAuthenticationModule authenticationModule);
   public static void Unregister(IAuthenticationModule authenticationModule);
   public static void Unregister(string authenticationScheme);
}