How to disable Nagle in .NET 4.5 ClientWebSocket?

Question

I would like to use .NET 4.5 ClientWebSocket ( http://msdn.microsoft.com/en-us/library/system.net.websockets.clientwebsocket%28v=vs.110%29.aspx ), but Wireshark shows that the algorithm Nagle is included, which is a pain in the neck. Can someone tell me how to achieve the ClientWebSocket Socket.NoDelay property? Even a hack would be appreciated ...