The HttpRequest.LogonUserIdentity property exposes the properties and methods of the System.Security.Principal.WindowsIdentity object for the currently connected user to Microsoft Internet Information Services (IIS). The instance of the System.Security.Principal.WindowsIdentity class that is exposed by HttpRequest.LogonUserIdentity tracks the IIS request token and provides easy access to this token for the current HTTP request being processed inside of ASP.NET. An instance of the System.Security.Principal.WindowsIdentity class is automatically created so it does not need to be constructed to in order to gain access to its methods and properties.