Antony Polukhin wrote:
Ok, but the signal documentation does not allow to use a lot of functions in signal handlers (syscalls, malloc, printf...). Am I allowed to use COM functions in signal handlers?
The signal handlers are fake, they aren't really signal handlers. A crash generates a structured exception on Windows, and the runtime calls the appropriate signal handler when handling that exception. I'm not 100% sure what can be done in a SEH handler, but calling Windows API functions is certainly possible, and this specific COM use - loading an inproc handler and calling it - should be fine too. (In some rare situations, such as crashes in constructors of static objects in DLLs, the loader lock may cause a deadlock, but that's life.)