title: Accessing File system from SharePoint - Access denied
body: <p>I've created a custom SharePoint application which extends some of the OOTB functionality of SharePoint. Now I want to license the application and provide trial periods etc. So I want to store the licensing information in the file system/registry and check the validity of the license across the application. But even after I elevate to the application pool identity (who is just a domain user and not a system administrator as advised here <a href="http://technet.microsoft.com/en-us/library/cc678863%28office.12%29.aspx" rel="nofollow">http://technet.microsoft.com/en-us/library/cc678863%28office.12%29.aspx</a>) I'm getting access denied for accessing my file.</p>
  
  <p>What is the common practice to read/write/create files in the file system from SharePoint application?</p>