C/Visual C - Ayuda con codigo en C

#include <stdio.h>

#include <sys/types.h>

#include<sys/wait.h>

#include <stdio.h>

#include <unistd.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

int main(int argc, char *argv[]){

   //char *tabla[argc];

   pid_t id;

   id = fork();

   if (id == -1) {

      printf("Error en la creación del proceso\n");

      exit (-1);

   }

   if (id == 0) {	/* Proceso hijo */

      execv(argv[0], argv);

      //exit(0);

   } else {

      //wait(0);

   }

   sleep(1);

   exit(0);

}

the value of argc is greater than zero, the string pointed to by argv[0] represents the program name;

argv[0][0] shall be the null character if the program name is not available from the host environment.