uses MMSystem;
procedure TForm1.Button1Click(Sender: TObject);
begin
sndPlaySound('C:WindowsMediaTada.wav',
SND_NODEFAULT Or SND_ASYNC Or SND_LOOP);
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
sndPlaySound(nil, 0); // Stops the sound
end;