I'm doing a Major Upgrade for a Basic MSI project. For the upgrade, I don't want the user to go through all the installation dialogs configuring the product again, the upgrade is performed just when there is a new version of the JDK, or OC4J needs to be updated from 10.3 to 10.4, for example. So most of the configuration should still be there.
Is there a way to direct which dialogs should occur if it's an upgrade and not a new installation? I would also need to be able to tell the difference for custom actions, if there's a property I can check, because I have configuration settings and don't want to completely uninstall the existing version.
I've looked at the documentation on upgrades, and it seems it basically performs the installation process. I'm just not sure where to start with this.
