title: How to use dll's?
body: <p>I know that if I have an .a or .so file and a header file for that library (for example for SystemC), I should 
  1. include header file 
  2. link the appropriate library. </p>
  
  <p>But I can't handle with only .dll file as I can link it as well, but don't have a hearer file to include and to use commands. Con someone explain me what kind of .dll-s exist and how they are possible to use? Is it possible to use any .dll file or it should be a specific kind of .dll to be able to integrate to my application?</p>