高手帮我看看～这是个发光二极管点亮和熄灭的程序.这个是Borland C编的,在win98里可以实现功能，在win2000里就不行啦，好像是outportb()这个函数用不了，能帮忙看看找个能在win2000里实现的函数吗？

#include <string.h>
#include <ctype.h>
#include <dos.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <stdarg.h>
#include <bios.h>
#include <time.h>
#include <conio.h>
#include <process.h>
#include <fcntl.h>


#define  OUTPORT_BASE           0x283     /// address of ISA port ///

#define  ESC                    0x1b                  /* Define the escape key        */

main()
{
  unsigned char key_in=0;

  outportb(OUTPORT_BASE,0xff);  /// LED CLOSE ///

  do
    {
     key_in=0;
     if(kbhit()) key_in=getch();

     if (key_in == ESC)
       {
        outportb(OUTPORT_BASE,0xff);
       }

     if (key_in == '1')
       {
        printf("  Led op.\n\n");
        outportb(OUTPORT_BASE,0x00);
       }

     if (key_in == '0')
       {
        printf("  Led close.\n\n");
        outportb(OUTPORT_BASE,0xff);
       }

    } while (key_in != ESC) ;

clrscr();
exit(0);
}