var iid = new Guid("{1B617C4B-BF68-4B8C-AE2B-A77E6A3ECEC5}");
using (var server = new RpcServerApi(iid, 100, ushort.MaxValue, allowAnonTcp: false))
{
    // Add an endpoint so the client can connect, this is local-host only:
    server.AddProtocol(RpcProtseq.ncalrpc, "RpcExampleClientServer", 100);
    // Add the types of authentication we will accept
    server.AddAuthentication(RpcAuthentication.RPC_C_AUTHN_GSS_NEGOTIATE
    // Subscribe the code to handle requests on this event:
    server.OnExecute +=
        delegate(IRpcClientInfo client, byte[] bytes)
            { return new byte[0]; };
    // Start Listening 
    server.StartListening();
	// Wait...
	Console.ReadLine();
}

var iid = new Guid("{1B617C4B-BF68-4B8C-AE2B-A77E6A3ECEC5}");
using (var client = new RpcClientApi(iid, RpcProtseq.ncalrpc, null, "RpcExampleClientServer"))
    //using (var client = new RpcClientApi(iid, RpcProtseq.ncacn_ip_tcp, null, @"18081"))
{
    // Provide authentication information (not nessessary for LRPC)
    client.AuthenticateAs(RpcClientApi.Self);
    // Send the request and get a response
    byte[] response = client.Execute(new byte[0]);
}