{filelink=17853}

using System;
using Microsoft.Win32;
using System.Security.Permissions;

class ClasseRegistre
{
    static void Main(string[] args) {

        RegistryPermission permissionReg = new RegistryPermission(RegistryPermissionAccess.AllAccess,@"HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersion");
        permissionReg.Demand();

        RegistryKey maClé = Registry.LocalMachine;
        maClé = maClé.OpenSubKey(@"SOFTWAREMicrosoftWindows NTCurrentVersion");

        Object oValue = maClé.GetValue("RegisteredOwner");
        Console.WriteLine("Administrateur: {0}", oValue.ToString());

    }
}