title: How to force file replacement on MSI upgrade
body: <p>Using Installshield 2010 with a Basic MSI project.  </p>
  
  <p>I have several config files that have to be replaced during an upgrade. Since they are config files, they don't have a version.  I believe they aren't replaced during because during the original install, the configs are modified by the installer.  This sets the modified date different than the creation date.  As I understand it the unversioned file has been modified the upgrade won't replace it.</p>
  
  <p>Is there a way to force the replacement ?  I have some bootstrap prerequsites that require a setup.exe so I would rather not modify the .msi in orca.</p>