Connaitre la version d'ADO installée

uses ComObj ;
function GetADOVersion: var iant;
var
ADO: Variant;
begin
try
ADO := CreateOLEObject('adodb.connection');
Result := ADO.Version;
ADO := Null;
except
Result := '0.0';
end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
ShowMessage('la version d''ADO installé est la ' +GetADOVersion)
end;