update userdata for windows

src/main/java/com/edgec/browserbackend/common/client/AliEcsRemoteClient.java

@@ -47,26 +47,28 @@ public class AliEcsRemoteClient {
 
     // PowerShell UserData for Windows ECS
     private static String getUserData() {
-        return "$script = @\"\n"
-                + "Set-ExecutionPolicy Bypass -Scope Process -Force;\n"
-                + "$ErrorActionPreference = 'Stop';\n"
-                + "# Configure 3proxy\n"
-                + "$configContent = @\"\n"
-                + "users %s:CL:%s\n"
-                + "allow %s  *\n"
-                + "auth strong\n"
-                + "proxy -p8880\n"
-                + "proxy -p8881 -a\n"
-                + "socks -p8882\n"
-                + "flush\n"
-                + "\";\n"
-                + "Set-Content -Path 'C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg' -Value $configContent -Force;\n"
-                + "\n"
-                + "# Start 3proxy service\n"
-                + "Start-Process 'net' -ArgumentList 'start 3proxy' -NoNewWindow -Wait;\n"
-                + "\"@;\n"
-                + "$script | Out-File -FilePath 'C:\\Windows\\Temp\\userdata.ps1' -Force;\n"
-                + "Start-Process PowerShell -ArgumentList 'C:\\Windows\\Temp\\userdata.ps1' -NoNewWindow -Wait;";
+        return "[bat] \n"
+        + "rem Set Execution Policy (Note: Batch doesn't directly support this) \n"
+        + "rem Set-ExecutionPolicy Bypass -Scope Process -Force; \n"
+        + "rem The above line is not needed in batch since it can be controlled from the PowerShell session itself \n"
+
+        + "rem Set error action preference \n"
+        + "set ErrorActionPreference=Stop \n"
+
+        + "rem Configure 3proxy settings \n"
+        + "echo users %s:CL:%s > C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg \n"
+        + "echo allow %s * >> C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg \n"
+        + "echo auth strong >> C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg \n"
+        + "echo proxy -p8880 >> C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg \n"
+        + "echo proxy -p8881 -a >> C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg \n"
+        + "echo socks -p8882 >> C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg \n"
+        + "echo flush >> C:\\3proxy-0.9.4-x64\\bin64\\3proxy.cfg \n"
+
+        + "rem Start the 3proxy service \n"
+        + "net start 3proxy \n"
+
+        + "rem End script \n"
+        + "exit \n";
     }
 
     /*