title: How to Delete Authentication Cookie
body: <p>I am developing ASP.NET MVC application. I made some changes to save some extra info in cookie in latest version.
  Few of my customers are still running old version.
  Is there any way to expire the existing cookies of my existing customer and enforce them to log-on again when they connect to my new application hosted in IIS?</p>
  
  <p>Thanks,</p>