c++ compiler for windows 7

1. install microsoft visual studio 6.0
2. start -> programs -> microsoft visual studio 6.0-> microsoft visual c++ 6.0
3. File-> New -> Files -> C++ Source File -> type filename ->ok
4. write a c++ program.

 #include<iostream.h>
#include<conio.h>
void main()
{
 int a,b;
  cout<<"WELCOME";
 cin>>a>>b;
 cout<<a+b;
 cout<<a-b;
}
5.  Run -> Ctrl+F5