Named pipes is ncalrpc yes? This OPC thing sounds more like a network protocol.
Sorry, I understand now. We use local named pipes to implement (local) DCOM internally but ncalrpc on windows is actually implemented using NT ports. So named pipes via SMB/CIFS ... yeah, I doubt we could do that anytime soon :) Bizarre stuff. What's confusing is that CreateNamedPipe on msdn doesn't talk about networking at all, and there's no parameters to deal with hostnames.