module demo
{
    module hello {

        interface GoodDay {
            
            string hello_simple();
            
            wstring hello_wide( in wstring msg );            
        };
               
    };

};

using Org.Omg.CORBA;
using System;

namespace demo.hello
{
	public class GoodDayImpl : GoodDayPOA
	{
		private string location;

		public GoodDayImpl( string location ) 
		{
			this.location = location;
		}

		public override string Hello_Simple() 
		{
			return "Hello World, from " + location;
		}

		public override string Hello_Wide(string wide_msg) 
		{
			Console.WriteLine("The message is: " + wide_msg );       
			return "Hello W?rld, from ?1 2 3 0 *&^%$#@!@";
		}

	}

}

using Org.Omg.CORBA;
using Org.Omg.PortableServer;
using System;
using System.IO;
using Org.Omg.CosNaming;
				
namespace demo.hello 
{
  public class Server
  {
    public static void Main(string[] args)
    { 
      try            
      { 
        //init
        ORB ORB orb = ORB.Init( args, null); //init
        POA POA poa 
           = POAHelper.Narrow( orb.Resolve_Initial_References( "RootPOA"));

        poa.the_POAManager.Activate(); // create a GoodDay
        object GoodDayImpl goodDayImpl = new GoodDayImpl( "Somewhere"); // create the object      
        reference Org.Omg.CORBA.Object obj = poa.Servant_To_Reference( goodDayImpl);
        if ( args.Length = = 1)
        {
          // write the object reference to args[0] 
          StreamWriter stmWriter = new StreamWriter(File.Open(
                    args[0], FileMode.Create)); stmWriter.WriteLine( orb.Object_To_String(
                    obj)); 
          stmWriter.Close();
        }
        else
        { 
           naming context NamingContextExt nc
              = NamingContextExtHelper.Narrow(
                  orb.Resolve_Initial_References("NameService")); nc.Bind(
                    nc.To_Name("HelloServer.example"), obj); } // wait for requests
          orb.Run();
        } 
        catch ( Exception e) 
        {
          Console.WriteLine("Msg : " + e.Message); 
          Console.WriteLine(e.StackTrace);
        }
      }  
    }
  }
}

using Org.Omg.CORBA;
using System;
using System.IO;
using Org.Omg.CosNaming;

namespace demo.hello 
{
  public class Client 
  {
    public static void Main( string[] args ) 
    {
      try 
      {
        // initialize the ORB.
        ORB orb = ORB.Init( args, null );

        // and narrow it to HelloWorld.GoodDay
        // if this fails, a BAD_PARAM will be thrown
        GoodDay goodDay;

        if( args.Length == 1 ) 
        {
          StreamReader stmReader = new StreamReader(File.Open(args[0], FileMode.Open));
          string reference = stmReader.ReadLine();
          stmReader.Close();
          goodDay = GoodDayHelper.Narrow( orb.String_To_Object(reference) );
        }
        else
        {
           // get hold of the naming service
           NamingContextExt nc = NamingContextExtHelper.Narrow(orb.Resolve_Initial_References("NameService"));     
           goodDay = GoodDayHelper.Narrow(nc.Resolve(nc.To_Name("HelloServer.example")));
        }

        // invoke the operation and print the result
        Console.WriteLine(  goodDay.Hello_Simple() );

        // invoke the operation again and print the wide string result
        Console.WriteLine(  "wide string: " + 
            goodDay.Hello_Wide( "Hello W?rld, from ??1 2 3 0 *&^%$#@!@"));

      }
      catch( Exception ex ) 
      {
        Console.WriteLine("Msg : " + ex.Message);
        Console.WriteLine( ex.StackTrace );
      }	
    }
  }
}

Program Setup

Suppose you are using Win32 platform and have installed .Net Framework v1.1
 
1.	create a working directory 

2.	copy the <tomorb_home>\config\csharp\tomorb_config.xml
	into the working directory and edit the name service reference as 
	follow:
	ORBInitRef.NameService=file://c:/NS_Ref
	
3.	Put all the source codes into this directory 

4.	Make sure to copy the runtime libraries from the 
	distribution directory (<tomorb_home>\dist\net-1.1\bin) or register all
	TomORB in GAC (a script located in <tomorb_home>\config can help you to
	register all required libraries)
	
5.	copy <tomorb home>\dist\net-1.1\bin\TomORB*.* .
		or 
	fire the following command to register strongname libraries into GAC 
	<tomorb_home>\config\install-net-library.bat
	
6.	Compile the Idl file (server.idl) or use NAnt to fire the build script

	Type the following command to compile the IDL script manually:

	<tomorb_home>\dist\net-1.1\js-bin\idl2c.exe -lang CS -I . -d Generated server.idl
		or
	<tomorb_home>\dist\net-1.1\bin\idl2c.exe -lang CS -I . -d Generated server.idl

 Compile and test the programs by hand
 
	csc target:exe /out:hello-server.exe Server.cs GoodDayImpl.cs recurse:Generated\*.cs
		r:TomORB_Based,TomORB,TomORB_CosNaming,System,System.Xml
	
	csc target:exe out:hello-client.exe Client.cs GoodDayImpl.cs recurse:Generated\*.cs
		r:TomORB_Based,TomORB,TomORB_CosNaming,System,System.Xml
		
	run server program in one console with the following command
	hello-server.exe
		
	tomorb_home>\dist\net-1.1\bin\namesvc c:\NS_Ref
	
	run client program in another console to test against the server program
	hello-client.exe
	
Compile and test the programs by running the NAnt script