title: Changing Inno Setup manifest
body: <p>Using Inno Setup version 5.2.3.
  I need to update the manifest resource that is embedded in my setup.exe.</p>
  
  <p>I need to add some features required by a compatibility testing program used by our client:</p>
  
  <pre><code>  &lt;compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1"&gt;
      &lt;application&gt;
        &lt;supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/&gt;
        &lt;supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/&gt;
        &lt;supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/&gt;
      &lt;/application&gt;
    &lt;/compatibility&gt;
  </code></pre>
  
  <p>I know there is an <code>OutputManifestFile</code> key. but is there an <code>InputManifestFile</code> or similar?</p>