Hi;
I'm doing an example program from a book regarding .NET Remoting.
Both the Client and Server are C# Console Applications.

Server Code is

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

namespace Wrox.Samples
{
    class SimpleServer
    {
        [STAThread]
        static void Main(string[] args)
        {
            //Create and register the Server Channel
            TcpServerChannel channel=new TcpServerChannel(9000);
            ChannelServices.RegisterChannel(channel);

            RemotingConfiguration.ApplicationName="SimpleServer";
           
            ActivatedServiceTypeEntry remObj=new
ActivatedServiceTypeEntry(typeof(MyRemoteObject));
            RemotingConfiguration.RegisterActivatedServiceType(remObj);

            Console.WriteLine("Press Return To Exit");
            Console.ReadLine();
           
        }
    }
}

And the Remote Object Class in the Wrox.Samples Project is
using System;

namespace Wrox.Samples
{
        public class MyRemoteObject:System.MarshalByRefObject
    {
        public MyRemoteObject()
        {
            Console.WriteLine("Constructor Called");
        }

        public string Hello()
        {
            Console.WriteLine("Hello Called");
            return "Hello, .NET Client!";
        }
    }
}

And my Client Code is

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using Wrox.Samples;
using System.Runtime.Remoting.Activation;

namespace WS
{
    class SimpleClient
    {
        [STAThread]
        static void Main(string[] args)
        {
            //Create and Register the Client Channel
            TcpClientChannel channel=new TcpClientChannel();
            ChannelServices.RegisterChannel(channel);

            ActivatedClientTypeEntry entry=new
ActivatedClientTypeEntry(typeof(MyRemoteObject),"tcp://localhost:9000/");
        RemotingConfiguration.RegisterActivatedClientType(entry);           
                                                         
            MyRemoteObject obj=new MyRemoteObject();//###Exception Occures
here

            for (int i=0; i<5; i++)
            {
                Console.WriteLine(obj.Hello());
            }
            Console.ReadLine();           
        }
    }
}

My Problem is When I Run the Server and the Client in the Client where
I'm Instantiating the New MyRemoteObject the Following Error Comes.

An unhandled exception of type
'System.Runtime.Remoting.RemotingException' occurred in mscorlib.dll

Additional information: Permission denied for activating type
Wrox.Samples.MyRemoteObject, MyRemoteObject, Version=0.0.0.0,
Culture=neutral, PublicKeyToken=null.

But for WellKnown and Singleton RemoteObjects it Works Fine.
The error Comes only for CAO Scenario.

Help regarding this problem is highly appreciated.

Thanks
Deepal