title: How to instruct Inno Setup to install certain files on Windows XP only?
body: <p>I have a working Inno Setup script.  Recently, I have a file (<code>example.txt</code>) to be installed on Windows XP only.  The file will should not install on Windows Vista and above.</p>
  
  <p>How may I construct the Inno Setup script to do so?  I can't find any related function in <code>[Files]</code> section.</p>