How can I protect my C# app from someone killing its process via taskman or programmatically?
Here is my scenario:
App A is an MFC app developed by another t
I think everybody has missed the point. If I read it correctly (after your edit) you wish to know when you are being "killed" so you can shut down gracefully?
The point of "killing" is that you "can't" stop it. There are of course workarounds like using a second app to revive a killed app, but that has nothing to do with simply being able to shut down gracefully.
The best approach is to either run as a service (so you can't be killed, just asked to shut down), or to restructure the way your app works so that it doesn't need to "tidy up" before it quits. When an app is quit, most resources it holds are automatically cleaned up, so it's only really your own data that you have to close cleanly. Approaches you could try are: