title: Remove "_is1" suffix from Inno Setup AppId
body: <p>When specifying the <a href="http://www.jrsoftware.org/ishelp/index.php?topic=setup_appid" rel="nofollow"><code>AppId</code></a> parameter to an <em>Inno Setup</em> script, a <code>_is1</code> suffix is automatically added. </p>
  
  <p>I realized that looking at the following key:</p>
  
  <pre><code>HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall
  </code></pre>
  
  <p>Is it possible to disable this suffix?</p>