Descriptive Problem Summary:
If you press retry on the prompt blahblah.exe is still running (like byond.exe, dreamseeker.exe, etc) twice, it will ask if you want it to force close the program for you. if you hit yes, but that program finally exited between the last time you hit retry to when you hit yes, force close it, it will error out that it couldn't close it, but rather then check to see if it was because that program is no longer still running, it just assumes it is, that it can't kill it, and considers that a fatal error.


Reproduce steps:

open byond.exe (hub/pager)
run a installer for byond.
hit retry twice at the prompt about byond.exe
close byond.exe
hit yes at the installer prompt
....
profit.


Ideally in these cases it should check that it is still running (in fact it should do that when it returns from the user prompt before attempting to kill it) if it fails to kill the process and only abort the install if its still running.