title: What else can cause 'Padding is invalid and cannot be removed" exception with WebResource.axd?
body: <p>Recently, a couple of my applications have started throwing exceptions with the message <code>Padding is invalid and cannot be removed</code> intermitently</p>
  
  <p>My applications already have a machineKey specified in the web.config as suggested in <a href="https://stackoverflow.com/questions/309859/padding-is-invalid-and-cannot-be-removed-exception-on-webresource-axd">this thread</a></p>
  
  <p>The applications are deployed to a <em>single</em> Windows 2003 server running IIS6.</p>