Inform Users about Major Upgrade

[dogstar]

Hello there,

I've added a major upgrade in my project and it worked well: uninstall the old version and then install the new version.

But I'd like to add a warning message box before uninstalling the old version to notify the user that the installer will start to uninstall.

How do I add the message box? My project is an Installscript MSI project but I did not find where I can add the script.

Thanks in advance.

[Holger_G]

Take a look here.

[dogstar]

Thanks a lot.