The Microsoft WS-I Basic Security Profile 1.0 Sample Application is a preview release of the work being done by the WS-I Sample Application Working Group members to demonstrate interoperability of secure Web services.
WS-I Basic Security Profile 1.0 Sample Application: Preview release for the .NET Framework version 1.1
WS-I Basic Security Profile 1.0 Sample Application: Preview release for the .NET Framework version 1.1