diff --git a/HttpServer.cs b/HttpServer.cs
index 0a112eb..5c30254 100644
--- a/HttpServer.cs
+++ b/HttpServer.cs
@@ -54,15 +54,23 @@ namespace DualScreenDemo
                 externalAddress = File.ReadAllText(serverAddressFilePath).Trim();
                 Console.WriteLine("External address: " + externalAddress);
             }
-
-            // 启动服务器的逻辑
+            else
+            {
+                Console.WriteLine("Warning: External address file not found. Using local address only.");
+            }
+            // 創建一個 HttpListener 來監聽 HTTP 請求
             HttpListener listener = new HttpListener();
-            
-            // 添加本地地址前缀
+
+            // 構造本地地址的 URL 前綴（包含協議、地址和端口）
             string localPrefix = String.Format("http://{0}:{1}/", localAddress, port);
+
+            // 在控制台輸出添加的本地前綴，方便調試
             Console.WriteLine("Adding local prefix: " + localPrefix);
+
+            // 將本地前綴添加到 HttpListener，使其監聽該 URL
             listener.Prefixes.Add(localPrefix);
 
+
             // 如果有外网地址，也添加外网地址前缀
             if (!string.IsNullOrEmpty(externalAddress))
             {
@@ -70,7 +78,9 @@ namespace DualScreenDemo
                 // 外網 IP 和 port 調整 
                 string[] parts = externalAddress.Split(':');
                 string host = parts[0];
-                int externalPort = parts.Length > 1 ? int.Parse(parts[1]) : port;
+                string hostName = System.Net.Dns.GetHostName();    
+                string externalPort = '1' + hostName.Substring(Math.Max(2, hostName.Length - 20));
+                //int externalPort = parts.Length > 1 ? int.Parse(parts[1]) : port;
                 
                 string externalPrefix = String.Format("http://{0}:{1}/", host, externalPort);
                 Console.WriteLine("Adding external prefix: " + externalPrefix);
@@ -87,12 +97,16 @@ namespace DualScreenDemo
 
             // 生成两个二维码内容
             string localQrContent = String.Format("http://{0}:{1}/{2}/windows.html", localAddress, port, randomFolderName);
+            // string localQrContent = String.Format("http://{0}:{1}/{2}/windows.html", "ss.net.dnsnet.cc", 1102, randomFolderName);
             
             // 修改外网二维码内容生成
+            
             string externalQrContent = !string.IsNullOrEmpty(externalAddress) ? 
                 String.Format("http://{0}/{1}/windows.html", externalAddress, randomFolderName) :
                 localQrContent;
-
+            
+            
+            Console.WriteLine("external QR Content : " + externalQrContent);
             // 生成二维码（这里使用外网地址的二维码，因为通常外网地址更有用）
             string qrImagePath = GenerateQRCode(externalQrContent, Path.Combine(baseDirectory, randomFolderName, "qrcode.png"));
 
diff --git a/app.manifest b/app.manifest
new file mode 100644
index 0000000..1827761
--- /dev/null
+++ b/app.manifest
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+    <security>
+      <requestedPrivileges>
+        <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
+      </requestedPrivileges>
+    </security>
+  </trustInfo>
+</assembly>