Web Services Enhancements (WSE)
Web Services Enhancements (WSE)
Web Services Enhancements for Microsoft .NET (WSE) is a supported add-on to Microsoft Visual Studio .NET and the Microsoft .NET Framework providing developers the latest advanced Web services capabilities to keep pace with the evolving Web services protocol specifications.
http://msdn.microsoft.com/webservices/webservices/building/wse/default.aspx