I'm creating an application which needs to have a key file based product activation.
If a user purchases the application, the key file may have to be attached to the application EXE file dynamically (may be online) and package it to an MSI installer. The user downloads the application from a server or repository.
How can I do this?
You can embed custom data in the Binary table in an MSI file. When a customer downloads your installer you could perform a custom action and copy the base MSI, insert their license and provide the file to download.
I think that you're over complicating this. I think you would be far better off shipping an unregistered installer and providing the user the facility to input their license data.
