A cookie is a small file which may be stored on your computer, mobile phone etc when you visit a website.
A cookie could contain information which records any preferences you set on a particular web page. If you ever visit the web site again, the cookie information is retrieved and any preferences you have set are remembered.
|ASP.NET_SessionId||This cookie is needed for the PPR registation form and other interactive pages. The cookie will expire at the end of the browser session and contains no personal information.||At end of session|
Most web browsers allow some control of most cookies through the browser settings.
More information about cookies can be found at http://www.aboutcookies.org/legal-notices/cookies/ .