https://bugs.winehq.org/show_bug.cgi?id=52065
--- Comment #5 from Alexandr Oleynikov sashok.olen@gmail.com --- (In reply to Ken Sharp from comment #2)
Confirming but killing the process kills the process. It cannot continue if the process is dead.
Yes but I think what happens is that the UI is frozen and the app is leaking memory but the installation process itself succeeds before the app is killed.