Comment: Re:It's worse than that (Score 1) 564
New protocols? A low-level protocol like like a PGM or ICMP? No, the RT sockets don't let you do that (among other things, there's hardly any value: even if you made a new low--level protocol, you'd have trouble getting internet-scale adoption (heck, even useful things like PGM have trouble, and we're never getting another ICMP again).
RT Sockets are a wrapper over WinSock (aka, Windows version of BSD sockets), but with some stuff cut out and object-orient-ified.
Links: documentation is at http://msdn.microsoft.com/en-us/library/windows/apps/windows.networking.sockets.aspx/
and there's a talk: http://channel9.msdn.com/Events/Build/BUILD2011/PLAT-580T/