Preferences Tab

The Preferences tab on the Options dialog box is where you specify preferences for run commands and for project reloads.

Preferences Tab Settings
Setting	Description
Uninstall before installing	If you would like InstallShield to automatically uninstall your installation project before running it when you run your installation from the Build menu, select this check box.
Reload last opened project on startup	If you would like InstallShield to automatically reload the most recently opened project when you launch InstallShield, select this check box.