title: Web Service background process without human interaction
body: <p>I would like my web service to call a clean up routine every X hours, with no input from any user, or any call to "Start Clean up Services".  I understand I can call a method to start this service, but I want no user interaction at all.  I want to publish this service, and it automatically starts, and runs my clean up process every X hours.</p>
  
  <p>Any ideas?</p>