Since you need to load a new executable, why not just start it in a new process rather than duplicating the current one first?

Well, I was thinking about Unix systems where calling fork & exec is the standard (and sometimes only) way to start a new process. On Windows, you are right, it will be quite inefficient.

In reply to Re^6: forks for running multiple codes at same time by salva
in thread forks for running multiple codes at same time by adamquestion

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