The AuthenticateRequest event signals that the configured authentication mechanism has authenticated the current request. Subscribing to the AuthenticateRequest event ensures that the request will be authenticated prior to processing the attached module or event handler.
Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.