以下是实现强制开启Windows 远程桌面服务并禁用网络级别身份验证（NLA）的C#代码示例：

using System;
using Microsoft.Win32;
using System.ServiceProcess;
using System.Diagnostics;
using System.Security.Principal;


class EnableRemoteDesktop
{
    static void Main(string[] args)
    {
        if (!IsAdministrator())
        {
            Console.WriteLine("请以管理员权限运行此程序。");
            return;
        }


        try
        {
            ConfigureTermService();
            EnableRdpThroughRegistry();
            DisableNlaThroughRegistry();
            RestartTermService();
            
            Console.WriteLine("远程桌面已成功启用，NLA限制已取消！");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"操作失败: {ex.Message}");
        }
    }


    static bool IsAdministrator()
    {
        var identity = WindowsIdentity.GetCurrent();
        var principal = new WindowsPrincipal(identity);
        return principal.IsInRole(WindowsBuiltInRole.Administrator);
    }


    static void ConfigureTermService()
    {
        try
        {
            // 设置服务为自动启动
            ProcessStartInfo scConfig = new ProcessStartInfo
            {
                FileName = "sc",
                Arguments = "config TermService start= auto",
                UseShellExecute = false,
                CreateNoWindow = true
            };
            Process.Start(scConfig)?.WaitForExit();


            // 确保服务运行
            using (ServiceController service = new ServiceController("TermService"))
            {
                if (service.Status != ServiceControllerStatus.Running)
                {
                    service.Start();
                    service.WaitForStatus(ServiceControllerStatus.Running, TimeSpan.FromSeconds(30));
                }
            }
        }
        catch (Exception ex)
        {
            throw new Exception($"配置远程桌面服务失败: {ex.Message}");
        }
    }


    static void EnableRdpThroughRegistry()
    {
        try
        {
            using (RegistryKey key = Registry.LocalMachine.OpenSubKey(
                @"SYSTEM\CurrentControlSet\Control\Terminal Server", true))
            {
                key?.SetValue("fDenyTSConnections", 0, RegistryValueKind.DWord);
            }
        }
        catch (Exception ex)
        {
            throw new Exception($"修改注册表启用RDP失败: {ex.Message}");
        }
    }


    static void DisableNlaThroughRegistry()
    {
        try
        {
            using (RegistryKey rdpKey = Registry.LocalMachine.OpenSubKey(
                @"SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp", true))
            {
                rdpKey?.SetValue("UserAuthentication", 0, RegistryValueKind.DWord);
            }
        }
        catch (Exception ex)
        {
            throw new Exception($"禁用NLA失败: {ex.Message}");
        }
    }


    static void RestartTermService()
    {
        try
        {
            using (ServiceController service = new ServiceController("TermService"))
            {
                if (service.Status == ServiceControllerStatus.Running)
                {
                    service.Stop();
                    service.WaitForStatus(ServiceControllerStatus.Stopped, TimeSpan.FromSeconds(30));
                }
                service.Start();
                service.WaitForStatus(ServiceControllerStatus.Running, TimeSpan.FromSeconds(30));
            }
        }
        catch (Exception ex)
        {
            throw new Exception($"重启服务失败: {ex.Message}");
        }
    }
}

使用说明：

1. 以管理员身份运行：

• 在Visual Studio中创建项目时，需在app.manifest中添加管理员权限请求：

<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />

1. 关键操作说明：

• fDenyTSConnections设为0启用远程桌面

• UserAuthentication设为0禁用NLA

• 服务配置： 将TermService服务设置为自动启动并确保运行状态

• 注册表修改：

• 服务重启： 确保注册表修改生效

2. 附加建议（可选）：

// 添加防火墙规则（如果需要）
static void AddFirewallRule()
{
    try
    {
        ProcessStartInfo firewall = new ProcessStartInfo
        {
            FileName = "netsh",
            Arguments = "advfirewall firewall add rule name=\"Remote Desktop\" dir=in protocol=TCP localport=3389 action=allow",
            UseShellExecute = false,
            CreateNoWindow = true
        };
        Process.Start(firewall)?.WaitForExit();
    }
    catch (Exception ex)
    {
        Console.WriteLine($"防火墙规则添加失败: {ex.Message}");
    }
}

注意事项：

• 修改注册表前建议备份

• 禁用NLA会降低安全性，建议仅在可信网络环境中使用

• 部分服务器版本可能需要额外配置

• 确保3389端口在防火墙中开放（代码中已提供示例）

• ​
  

相关文档：

C#强制关闭Windows Server系统服务器远程桌面服务方法[3]
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