Associate Process With Current Process

I have a winforms application that calls an command line program. My application is MyApp.exe for example, and the application I call is OtherApp. exe - if my user exits my application properly, I can "kill" the instance of OtherApp.exe - however if the user uses task manager to kill MyApp.exe, I cannot kill OtherApp.exe... when I load the OtherApp.exe, is there a way to associate it with MyApp.exe so MyApp.exe can kill both automatically? I only allow MyApp.exe to load one OtherApp.exe at a time, and it is stored in a global variable.Basically even if OtherApp.exe is currently running (inside procJob), I want the procJob (and associated OtherApp.exe) to be killed if MyApp.exe exits by force in task manager.[code]