1.新建好的c#项目如下：

文件夹中内容如下：

此时已经可以通过vs2022打开.sln文件，就可以打开项目了。

2.我们把逆向后（主程序）的内容的代码粘贴过去。有些逆向功底，很快可以定位到，服务器的入口函数ServerStart.start(10100);

其原始代码如下：

namespace GameServer.Hnalder
{internal class ServerStart{private static Socket server;public static void start(int port){ServerStart.server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);ServerStart.server.Bind((EndPoint) new IPEndPoint(IPAddress.Any, port));ServerStart.server.Listen(20);ServerStart.server.BeginAccept(new AsyncCallback(ServerStart.AcceptCallBack), (object) ServerStart.server);}public static void stop(){ServerStart.server.Dispose();ServerStart.server.Close();}private static void AcceptCallBack(IAsyncResult ar){MyLog.form.textAdd("有客户端连接");try{Socket asyncState = (Socket) ar.AsyncState;Socket socket = asyncState.EndAccept(ar);Session session = new Session();session.socket = socket;LogicHandler.getInstance().sessionOpen(session);socket.BeginReceive(session.message, 0, session.message.Length, SocketFlags.None, new AsyncCallback(ServerStart.ReceiveCallBack), (object) session);asyncState.BeginAccept(new AsyncCallback(ServerStart.AcceptCallBack), (object) asyncState);}catch{}}private static void ReceiveCallBack(IAsyncResult ar){Session asyncState = (Session) ar.AsyncState;try{int count = asyncState.socket.EndReceive(ar);if (count == 0){MyLog.form.textAdd("有客户端断开连接");LogicHandler.getInstance().sessionClose(asyncState);return;}byte[] numArray = new byte[count];Buffer.BlockCopy((Array) asyncState.message, 0, (Array) numArray, 0, count);ServerStart.readMessage(asyncState, numArray);}catch (SocketException ex){LogicHandler.getInstance().sessionClose(asyncState);asyncState.socket.Close();return;}asyncState.socket.BeginReceive(asyncState.message, 0, asyncState.message.Length, SocketFlags.None, new AsyncCallback(ServerStart.ReceiveCallBack), (object) asyncState);}public static void readMessage(Session session, byte[] bytes){try{ByteArray byteArray = new ByteArray(bytes);int num1 = byteArray.ReadInt();int num2 = byteArray.ReadInt();int num3 = byteArray.ReadInt();int length = byteArray.ReadInt();string str = (string) null;if (length > 0)str = byteArray.ReadUTFBytes((uint) length);LogicHandler.getInstance().process(session, new SocketModel(){Type = num1,Area = num2,Command = num3,Message = str});}catch{}}}
}

 直接沾进去，一共16个问题。