Program.cs

using System;
using System.IO;
using System.Windows.Forms;
using System.Diagnostics;
using System.Security.Principal;

static class Program
{
    [STAThread]
    static void Main(string[] args)
    {
        try
        {
            if (!IsAdmin())
            {
                try
                {
                    var psi = new ProcessStartInfo
                    {
                        FileName = Application.ExecutablePath,
                        UseShellExecute = true,
                        Verb = "runas"
                    };
                    Process.Start(psi);
                    return;
                }
                catch { }
            }

            EnableTls12();

            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new MainForm());
        }
        catch (Exception ex)
        {
            try { File.WriteAllText(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "error.log"), ex.ToString()); }
            catch { }
            MessageBox.Show("启动失败: " + ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }

    static void EnableTls12()
    {
        try
        {
            // 启用 .NET Framework 的 TLS 1.2
            Microsoft.Win32.Registry.SetValue(
                @"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319",
                "SchUseStrongCrypto", 1, Microsoft.Win32.RegistryValueKind.DWord);
            Microsoft.Win32.Registry.SetValue(
                @"HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319",
                "SchUseStrongCrypto", 1, Microsoft.Win32.RegistryValueKind.DWord);
            // 启用 SChannel TLS 1.2（用于 HttpListener 的 HTTPS 服务）
            Microsoft.Win32.Registry.SetValue(
                @"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server",
                "Enabled", 1, Microsoft.Win32.RegistryValueKind.DWord);
            Microsoft.Win32.Registry.SetValue(
                @"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server",
                "DisabledByDefault", 0, Microsoft.Win32.RegistryValueKind.DWord);
        }
        catch { }
    }

    static bool IsAdmin()
    {
        try
        {
            var id = WindowsIdentity.GetCurrent();
            var p = new WindowsPrincipal(id);
            return p.IsInRole(WindowsBuiltInRole.Administrator);
        }
        catch { return false; }
    }
}