public TokenPrivilege(string systemName, string privilege, bool enabled)
        {
            LUID luid;
            var rc = Win32.LookupPrivilegeValue(systemName, privilege, out luid);
            Win32.CheckCall(rc);

            _luid = new Luid(luid);
            _attributes = (enabled ? PrivilegeAttributes.Enabled : 0);
        }
 private static extern bool LookupPrivilegeValue(string lpSystemName, string lpName, out Luid lpLuid);