#include "dos.h"

#include "iostream.h"

main()

{

        //AIM : finds the DOS opearating  system version, ver command does

        //not do. on Win 95/98/NT it just says win version not the DOS version

      REGS i,o;

      int h,l;

      i.h.ah=0x30;

      int86(0x21,&i,&o);

      h=o.h.ah;

      l=o.h.al;

      cout<<"\nDos Ver : "<<l<<"."<<h;

      return 0;

}