Namespace and stdafx.h

[Xeon]

Hi all,

I'm using Visual C++ 6.0 and reading from a very new C++ book written in 2005.

Below is my code from the book :

#include <iostream.h>
#include <stdafx.h>
using namespace std;

int main()
{
	cout << "Never fear, C++ is here!" << endl;
	cout << "Do you C++?" << endl;
	cout << "I'm back!\n";
	cout << "I love real women!\n";

	return 0;
}

However, the compile gave me an error :

C:\C++\Test\Test.cpp(3) : fatal error C1083: Cannot open include file: 'stdafx.h': No such file or directory

Obviously, if I remove "#include <stdafx.h>" and "using namespace std;", the error disappears, but what I like to know if why this error appeared in the 1st place. How can there be no "stdafx.h" file in Visual C++? Also, "using namespace std;" is a valid statement, right?
(I know the program can run without these 2 lines, though)

Is it because Visual C++ 6.0 is too old?

Thanks!
Xeon.