title: wix bootstrapper application - install multiple packages on checkboxes
body: <p>I'm a newbie to Wix burn. I'm making a wix Bootstrapper Application (BA) with multiple msi to install and an UI consisting of one panel with checkboxes and a button <em>install</em>. Each checkbox invites the user to select/unselect a msi, then the user presses "Install" and my BA should install the checked msi.</p>
  
  <p>In my <strong>Chain</strong> element in the main .wxs file, I plan to use <strong>MsiPackage</strong> elements with a <strong>condition</strong> attribute to determine whether yes or no the user has selected it.</p>
  
  <p>Now my question is : how to interface these condition attributes with the checkboxes ? Or in other words: how to get the checkbox information into the Wix .wxs file ?</p>