How to 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, 
    reg.RootKey := HKEY_CURRENT_USER;
    // Open a key
    reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Explorer\CD Burning', False);
    // Check if the Key exists
    Result := reg.ValueExists('CD Recorder Drive');
    // Close the key
    reg.CloseKey;
  finally
    // and free the TRegistry Object
    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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