System.Runtime.Remoting.Channels.Tcp ???

[neodatatype]

Why?

Why when I try to compile this simple sample (hehe) MS VS tell me that the

System.Runtime.Remoting.Channels.Tcp

Namespace does noe exists???

Then I try to compile it with csc.exe by dos prompt and all work fine???

Why???

--- code ---

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

namespace RemotingSamples 
{
    public class Sample 
    {

        public static int Main(string [] args) 
        {

            TcpChannel chan = new TcpChannel(8085);
            ChannelServices.RegisterChannel(chan);
            RemotingConfiguration.RegisterWellKnownServiceType(Type.GetType("RemotingSamples.HelloServer,object"), "SayHello", WellKnownObjectMode.SingleCall);
            System.Console.WriteLine("Hit <enter> to exit...");
            System.Console.ReadLine();
            return 0;
        }
    }
}