// (c) 2006 Richard Grimes
// www.grimes.demon.co.uk

using System;
using System.Security.Principal;
using System.Security.Permissions;

class App
{
   static void Main()
   {
      AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);
      try
      {
         Console.WriteLine("called OnlyAdministrators");
         OnlyAdministrators();
      }
      catch (Exception)
      {
         Console.WriteLine("OnlyAdministrators failed");
      }
      try
      {
         Console.WriteLine("called OnlyRichard");
         OnlyRichard();
      }
      catch (Exception)
      {
         Console.WriteLine("OnlyRichard failed");
      }
   }
   [PrincipalPermission(SecurityAction.Demand, Role=@"BUILTIN\Administrators")]
   static void OnlyAdministrators()
   {
      Console.WriteLine("OnlyAdministrators called");
   }
   [PrincipalPermission(SecurityAction.Demand, Name=@"MARS\RichardGrimes")]
   static void OnlyRichard()
   {
      Console.WriteLine("OnlyRichard called");
   }
}