//获得当前已注册的通道；
IChannel[] channels = ChannelServices.RegisteredChannels;
//关闭指定名为MyTcp的通道；
foreach (IChannel eachChannel in channels)
{
if (eachChannel.ChannelName == "MyTcp")
{
TcpChannel tcpChannel = (TcpChannel)eachChannel;
//关闭监听；
tcpChannel.StopListening(null);
//注销通道；
ChannelServices.UnregisterChannel(tcpChannel);
}
}