title: Auto-updating a DLL
body: <p>We are using a wrapper DLL in order allow auto-updating of our application (our product is a DLL).</p>
  
  <p>Where should we release the inner DLL when the application is closing?.</p>
  
  <p>(We tried to do it in a DLLMain callback but it doesn't seem to work and the specs says that it shouldn't be there.)</p>
  
  <p>Thank you</p>