VMS Help CC, Run-time functions, execve  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Passes the name of an image to be activated on a child process.
  This function is nonreentrant.

  Syntax:

       #include <unistd.h>

       int execve (const char *file-spec, char *argv[], char
       *envp[]);