title: InstallShield 2009 basic MSI silent install: how to set "Repair" by default
body: <p>Install shield premiere 2009: Basic MSI
  from command line typing setup.exe /s /v/qn installs silently. But if its installed once before it chooses "Modify" by default and doesn't go for replacing files. But i need to copy again the files. How to perform "Repair" on second silent install by default?</p>