CastelWindsor Demo

 class Program
    {
        static void Main(string[] args)
        {
            var container = new WindsorContainer();
            container.Install(FromAssembly.This());

            var king = container.Resolve<IKing>("King1");
            king.SayHello();
            var king2 = container.Resolve<IKing>("King2");
            king2.SayHello();
            Console.Read();

        }
    }
    public class RepositoriesInstaller : IWindsorInstaller
    {
        public void Install(IWindsorContainer container, IConfigurationStore store)
        {
            //container.Register(Classes.FromThisAssembly()
            //                    .Where(Component.IsInSameNamespaceAs<King>())
            //                    .WithService.DefaultInterfaces()
            //                    .LifestyleTransient());
            //container.Register(Classes.FromThisAssembly()
            //                    .Where(Component.IsInSameNamespaceAs<King2>())
            //                    .WithService.DefaultInterfaces()
            //                    .LifestyleTransient());
            container.Register(Component.For(typeof(IKing))
                .ImplementedBy(typeof(King1))
                .Named("King1").LifestyleTransient());
            container.Register(Component.For(typeof (IKing))
                .ImplementedBy(typeof (King2))
                .Named("King2").LifestyleTransient());
        }
    }

    public interface IKing
    {
        void SayHello();
    }

    public class King1 : IKing
    {
        public void SayHello()
        {
            Console.WriteLine("Hello i am the first king1");
        }
    }


    public class King2 : IKing
    {
        public void SayHello()
        {
            Console.WriteLine("Hello i am the first king2");
        }
    }

https://github.com/castleproject/Windsor/blob/master/docs/README.md