Where to download NIS 2012

I was having problem with LiveUpdate and was suggested to reinstall NIS 2012.

 

http://community.norton.com/t5/Norton-Internet-Security-Norton/LiveUpdate-fails-to-process-2-updates/m-p/841406/highlight/false#M222923

 

As nothing else worked. I decided to uninstall and reinstall NIS. Unfortunately I cannot find my CD and I now am unable to reinstall NIS.

 

Where can I download NIS 2012 from?