.NET Remotting 问题 求助：【由于目标机器积极拒绝，无法连接。 127.0.0.1:8089】 如何解决

生成远程对象的接口：
namespace RemottingObjectInterface
{
    public interface IHello
    {
        string Greeting(string name);
    }
}

远程对象：
namespace RemottingObject
{
    public class Hello : System.MarshalByRefObject, IHello
    {
        public Hello()
        {
            Console.WriteLine("Hello's Constructor is called !");
        }

        ~Hello()
        {
            Console.WriteLine("Hello's Destructor is called !");
        }

        public string Greeting(string name)
        {
            Console.WriteLine("Greeting called !");

            return "Hello" + name;
        }
    }
}

客户端调用代码：
namespace TestClient
{
    class Program
    {
        static void Main(string[] args)
        {
            //TcpClientChannel channel = new TcpClientChannel();
            //ChannelServices.RegisterChannel(channel, false);

            //IHello hello = (IHello)Activator.GetObject(typeof(RemottingObjectInterface.IHello), "tcp://localhost:8089/Hi");

            RemotingConfiguration.Configure("TestClient.exe.config");

            IHello hello = (IHello)Activator.GetObject(typeof(RemottingObjectInterface.IHello), "tcp://localhost:8089/Hi");

            Console.WriteLine(hello.Greeting(" - Guoxc"));
            
        }
    }
}

服务器端配置文件：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <application>
    <service>
      <channels>
        <channel ref="tcp" port="8089"/>
      </channels>
      <wellknown type="RemottingObject.Hello,RemottingObject" mode="SingleCall" ObjectUri="Hi">
      </wellknown>
    </service>
  </application>
</configuration>

客户端配置文件：
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.runtime.remoting>
    <application>
      <client>
        <wellknown type="RemottingObjectInterface.IHello, RemottingObjectInterface" 

                   url="tcp://localhost:8089/Hi" />
      </client>
    </application>
  </system.runtime.remoting>
</configuration>


********问题******************

安装并启动了Windows服务承载远程对象“Hello ”，执行客户程序抛出异常，异常信息为：【由于目标机器积极拒绝，无法连接。 127.0.0.1:8089】
问题出在哪里，请前辈们解决，不胜感激！！
****************************************************** --------------------编程问答-------------------- 服务端配置
system.runtime.remoting>
<application name="Service">
<service>
<wellknown type="RemottingObject.Hello,RemottingObject" mode="SingleCall" ObjectUri="Hi"> 
       </wellknown> 
</service>
      
        <channels>
         <channel ref="tcp" port="8089">
           <serverProviders>
             <provider ref="wsdl" />
             <formatter ref="binary" typeFilterLevel="Full" />
           </serverProviders>
           <clientProviders>
             <formatter ref="binary" />
           </clientProviders>
         </channel>
       </channels>
</application>
<customErrors mode ="Off" />
</system.runtime.remoting>

补充：.NET技术 ,  其他语言