I quickly hunted for an API on Windows that would tie a child process existence to its parents
And utterly failed to find one using CreateProcess
It seems that unless you use a JOB CreateProcess (which i assume CEF is using to spawn the child exe’s) can not set up a child process that will die if the parent dies
So if the process that starts things crashes everything is orphaned - exactly what we see happening
A job however can terminate all processes that are part of it from what I can find