title: Content Expiration - IIS 6
body: <p>If I set the content expiration for static files to something like 14 days and I decide to update some files later on, will IIS know to serve the updated files or will the client have to wait until the expiration date?</p>
  
  <p>Or is it the other way around where the browser requests a new file if the modified date is different?</p>
  
  <p>Sometimes I update a file on the server and I have to do a hard refresh (CTRL+F5) to see the difference.  Currently I have it to expire after 1 day.</p>