title: How to understand .def files?
body: <pre><code>LIBRARY     Vcam.ax
  EXPORTS
              DllMain                 PRIVATE
              DllGetClassObject       PRIVATE
              DllCanUnloadNow         PRIVATE
              DllRegisterServer       PRIVATE
              DllUnregisterServer     PRIVATE
  </code></pre>
  
  <p>The above is from <code>Filters.def</code>, what does it actually do?</p>