title: INNO: Disallow "Ignore" when file is in use
body: <p>I am using Inno Setup for the installer for my windows application. If a user has the application when the installer is run (eg. for an update), the installer will stop when it is unable to replace a file in use, and it allows the user to select whether to Abort, Ignore, or Retry.</p>
  
  <p>I would like it to only allow Abort or Retry and remove the option to Ignore. Does anyone know how this can be done?</p>
  
  <p>Or if this can't be done, how can I make the installer abort if the application is running?</p>