title: What causes an application pool in IIS to recycle?
body: <p>I have been searching for info on this to no avail. The context of why i need this is <a href="https://stackoverflow.com/questions/271944/storing-temporary-user-files-in-aspnet-in-medium-trust">another question I asked here</a>. More specifically, does creating/updating/deleting files in App_Data cause a pool recycle?</p>
  
  <p>If someone could provide a detailed list of what causes a recycle, that would be great.</p>
  
  <p><strong>UPDATE</strong>: As two users already noticed I would also be happy to an answer specifying reasons for recycling the AppDomain only and not the whole pool.</p>