Oh wait, everything on Windows OS is a thread, even the forks. If I had to write a serious program, that could involve crashes or whatever, I would use fork. On Linux, SysV Shared Memory along with a fork, is the best way to go. It just seems to have a cumbersome interface now, it would be nice to have a super-easy SysV shared memory module. I know modules exist, but they are not as easy to use as threads::shared.