Kaspersky allows users to migrate licence keys from previous versions of the software to the latest version for free.
This applies to new and existing licences.
(Only Kaspersky v7.0, 2009 or 2010 products apply.)
Visit the official page for more info:http://support.kaspersky.com/faq/?qid=208282124
£12.98 is a good deal for a 3 user licence since a retail version of 2011 is about £27!
Plus 4% quidco could make this £12.46