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AuthenticationManager.Register Method

Registers an authentication module with the authentication manager.

Namespace:  System.Net
Assembly:  System (in System.dll)

public static void Register(
	IAuthenticationModule authenticationModule


Type: System.Net.IAuthenticationModule
The IAuthenticationModule to register with the authentication manager.


authenticationModule is null.

The Register method adds authentication modules to the end of the list of modules called by the Authenticate method. Authentication modules are called in the order in which they were added to the list. If a module with the same AuthenticationType is already registered, this method removes the registered module and adds authenticationModule to the end of the list.

The following example registers an authentication module with the authentication manager. For a complete example, refer to the AuthenticationManager class.

// This is the program entry point. It allows the user to enter 
// her credentials and the Internet resource (Web page) to access.
// It also unregisters the standard and registers the customized basic 
// authentication.
public static void Main(string[] args) 

  if (args.Length < 3)

    // Read the user's credentials.
    uri = args[0];
    username = args[1];
    password = args[2];

    if (args.Length == 3)
      domain = string.Empty;
      // If the domain exists, store it. Usually the domain name
      // is by default the name of the server hosting the Internet
      // resource.
      domain = args[3];

    // Unregister the standard Basic authentication module.

    // Instantiate the custom Basic authentication module.
    CustomBasic customBasicModule = new CustomBasic();

    // Register the custom Basic authentication module.

    // Display registered Authorization modules.

    // Read the specified page and display it on the console.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.