my devc++

[q12]

i have dev-c++ v.4992
i wrote this program
#include <stdio.h>
#include <conio.h>
#include <dos.h>
#define LPT1 0x378
int main(void)
{
unsigned char Valor=128; //in binar: 10000000
while( Valor > 0 )
{
outportb(LPT1, Valor); // Portb LPT1
printf("\n LED...");
getch( );
Valor = Valor >> 1;
}
}
and it not compile
what can i do to make-it compile?
i think i must put in include folder of devc++ some x.h or something but i dont now what or where to put.
please help-me.

daca e postat rau si nimeni n-are treaba cu ce e scris aici please dati-mi un forum unde pot primi un raspuns.
aici e vb de cum pot accesa portul paralel lpt1 sa pot aprinde un led pus pe un pin.