...check, if a CD-Recorder is available? (WinXP)

{....}

uses Registry;

{....}

function HasCDRecorder: Boolean;
var
  reg: TRegistry;
begin
  reg := TRegistry.Create;
  try
    // set the the Mainkey, bestimmt den Hauptschlüssel
    reg.RootKey := HKEY_CURRENT_USER;
    // Open a key, den Schlüssel öffnen
    reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning', False);
    // Check if the Key exists, Überprüfen ob die Zeichenfolge existiert
    Result := reg.ValueExists('CD Recorder Drive');
    // Close the key, Schlüssel schliessen
    reg.CloseKey;
  finally
    // and free the TRegistry Object, das TRegistry Objekt freigeben
    reg.Free;
  end;
end;

// Example:
procedure TForm1.Button1Click(Sender: TObject);
begin
  if HasCDRecorder then
    ShowMessage('CD-Recorder available.')
  else
    ShowMessage('CD-Recorder NOT available.');
end;

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