[Code]
  var
    InstallTypePage : TWizardPage;

procedure InitializeWizard;
  begin
    InstallTypePage := CreateInputOptionPage(wpSelectDir,'Texto1', 'Texto2', 'Texto3', True, False);

    //Crea los radio buttons en esta pagina
    InstallTypePageID := InstallTypePage.ID;
    InstallTypePage.Add('Instalar');
    InstallTypePage.Add('Reparar');
    InstallTypePage.Add('Desinstalar');
  end;