This is a great article, Jon; I have to stop and think about these things all the time. How do you feel about the fact that in certain cases, when enough people use a word incorrectly for a long enough period of time, the incorrect usage becomes accepted as correct? I know diehards rail against this.
WCF includes a message framing protocol that is called .NET Message Framing for use with transports that do not natively support messaging. This framing protocol is used with the TCP transport to create NetTcp and with the MSMQ transport to create NetMsmq.
WCF Authentication: Custom Username and Password Validator. There are a number of authentication techniques supported by WCF. For instance Windows Authentication, X509 Certificates, Issued Tokens, and Username and Password are all mechanisms that can be used for authentication. These client credential types are configured as part of the binding configuration for an endpoint.