title: How to add a checkbox in wix installer
body: <p>I am working with the wix installer. I have implemented a folder backup functionality during my product installation. I need to add a checkbox in my setup installation to ask the user for the backup. if they check the checkbox ,then only the system needs to take the backup. 
   how to add the checkbox in the installer and how to add a condition in my wix file to take a backup.</p>
  
  <p>Thanks,
  Santhosh</p>