title: How to get Inno Setup to unzip a file it installed (all as part of the one installation process)
body: <p>To save bandwidth/space as well as prevent accidental meddling, the installation files for a database product (call it Ajax), have been zipped up (call that file "AJAX_Install_Files.ZIP).  I would like to have Inno-Setup "install" (i.e., copy) the AJAX_Install_Files.ZIP file to the destination, and then Unzip the files into the same folder where the .ZIP file is located.  A subsequent program would be fired off by Inno Setup to actually run the install of product "Ajax".</p>
  
  <p>I've looked through the documentation, FAQ, and KB at the <a href="http://www.jrsoftware.org/" rel="noreferrer" title="Inno Setup website">Inno Setup website</a>, and this does not seem possible other than writing a Pascal script (code) - would that be correct, or are  there are any alternative solutions?</p>