Assembly: System.ServiceModel (in system.servicemodel.dll)
A user account name (UPN) is the user name (sometimes referred to as the user logon name) and a domain name that identifies the domain in which the user account is located. This is one of the standard ways to log on to a Windows domain. The format is: firstname.lastname@example.org (as for an e-mail address).
A Down-Level Logon Name can also be used for creating a UpnEndpointIdentity.
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.