title: Inno Setup: Disable postinstall checkbox with CLI flags
body: <p>I currently have the following in my [Run] section of an Inno Setup script</p>
  
  <p><code>Filename: {app}\App.exe; Description: {cm:LaunchProgram,App}; Flags: nowait postinstall</code></p>
  
  <p>For 99.9% of cases, this is perfect, the checkbox is ticked by default, and the application starts after a silent install (which we use for automatic updating), but there's always that one situation it's not.</p>
  
  <p>Essentially, I need a way to disable/uncheck that option from command line in a silent install. I've tried using Tasks and Components but these add extra pages and checkboxes which I don't really want to appear.</p>
  
  <p>A Task seems by far the easiest way to do this if there is a way to stop the checkbox appearing during a normal install, otherwise open to any ideas!</p>
  
  <p>Cheers.</p>