title: Where can I store (and manage) Application license information?
body: <p>I am developing a Windows Application. That requires users to register to use it... 
  Now, I am storing my license info as a file in APpData. But deleting that file resets the trial version date. So, I am now planning to save it in registry. 
  But, Most of the Users will not have administrative privileges (Limited Users) in Windows to Access the registry.
  What can I do ? Where can I save my serial number and date ?</p>