What is WsHTTPBinding?

WsHTTPBinding:

It uses WS-* specifications like WS-Addressing, WS-Security and WS-ReliableMessaging.

Messages are encrypted by default.

It support Transactions.

As WsHttBinding supports WS-*, it has WS-Security enabled by default. So the data is not sent in plain text.

It supports HTTP or HTTPS protocols.

Should be used when you require reliable communication and Transactions support.

Refer below Article for more details.

http://www.codeproject.com/Articles/36396/Difference-between-BasicHttpBinding-and-WsHttpBind