[WiX-users] How to check programatically that Start Menu entries for my app are present on the system (post installation testing)?

It's a management requirement, part of "anti-piracy" strategy - as there is no built-in DRM, we want to make sure the install state (including licensing information) is there for corporate software auditors to see. How to do it, either in C++ or C#? -

[WiX-users] Is major update supposed to duplicate the add/remove programs entry?

I would like to develop an installer so that it would NOT force the user to uninstall the application manually prior to installing new version. Just running the new msi should update everything automatically. As far as I understood the wix book, in order to achieve that, I should set product ID in