Hi,
I want setup file executed like this:
When user clicks "Install", setup checks whether Excel is running or not. If not running, execute like common situation. Else if running, pop out a dialog with a label "Please close Excel!". The pop out dialog may also contains a Retry button and a Cancel button.
If user clicks Retry button, setup will try again to install. If user clicks Cancel button, turn to the "FatalError" dialog.