Prompt user to close application during uninstall (in WiX)

Question

I am using Windows Installer XML 3.0 (WIX3) to install some software.

Everything works fine, however, I\'m having a really hard time to handle the following use case

Answer 1

As far as I remember it should be enough to add the following references to your UI:

The CloseApplication stuff is only for closing applications during install, but it is buggy (at least when I tried it some months ago, maybe it's fixed now?)

Unfortunately, this is again an example for the very poor documentation of WiX, not even standard install/uninstall scenarios like this one are documented.