This can vary depending on your registered Cisco.com account.

For additional information on registered Cisco.com accounts, go to:
http://www.cisco.com/c/en/us/applicat/content/cdcrgstr/applications_overview.html.

For additional information on upgrading a registered Cisco.com account, go to:
http://www.cisco.com/c/en/us/about/help/registration-benefits-help/general-registration.html.