<process.h>

The <process.h> include file defines the process control functions:

abort execle execvp _spawn1 _spawnve
_beginthread execlp _execvpe _spawnle _spawnvp
_cwait _execlpe exit _spawnlp _spawnvpe
_endthread execv _exit _spawn1pe system
execl execve getpid _spawnv  



<stdlib.h>