title: how to include a header file in VB
body: <p>I can write program VB 6.0, but I don't know how to include a file in VB 6.0.
  In c it was </p>
  
  <pre><code>include "aa.h"
  </code></pre>
  
  <p>But I really don't know how to include this "aa.h" in my VB program. </p>