检测是否在Windows XP下以管理员权限运行

using System;
using System.Security.Principal;

class Program
{
    static void Main(string[] args)
    {
        bool isAdmin = IsAdministrator();
        Console.WriteLine("Is running as administrator: " + isAdmin);
    }

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