Как добавить нужный язык в систему

procedure TTMKBD.OkClick(Sender: TObject);
var
  reg: TRegistry;
  srs, dst: string;
begin
  Reg := TRegistry.Create;
  with Reg do
  try
    RootKey := HKEY_LOCAL_MACHINE;
    OpenKey('\System\CurrentControlSet\Control\keyboard layouts\00000405', True);
    WriteString('layout file', 'Turkmen.kbd');
    WriteString('layout text', 'Turkmen');
    OpenKey('\System\CurrentControlSet\Control\Nls\Locale', True);
    WriteString('00000405', 'Turkmen');
    CloseKey;
  finally
    Free;
  end;
  srs := 'Turkmen.kbd';
  dst := 'c:\windows\system\Turkmen.kbd';
  Filecopy(srs, dst);
  showmessage('Well Done it all');
  close;
end;