title: execute .BAT file in installshield
body: <p>I am developing a package and i need to run one <code>.bat</code> file that will install a windows service for me.
  I need 2 things:</p>
  
  <ol>
  <li>steps to make custom action that will run <code>.bat</code> files? or other may to run .bat file.</li>
  <li>how to make this custom action with the installation process(for example: just after license agreement)?</li>
  </ol>
  
  <p>*note: my service that I am installing is Delphi service.
  Regards.</p>