title: ASP.NET Schedule deletion of temporary files
body: <p>Question: I have an ASP.NET application which creates temporary PDF files (for the user to download).
  Now, many users over many days can create many PDFs, which take much disk space.</p>
  
  <p>What's the best way to schedule deletion of files older than 1 day/ 8 hours ?
  Preferably in the asp.net application itselfs...</p>