Program details http://www.vipreantivirus.com/
You will need to either have or very easily set up a Twitter account to get this. This FREEBIE is for a full 12 months license of a top quality security program.
Full instructions on how to get this program for FREE are in the link at the bottom of this post.
It will be worth you checking this link daily as this promotion will only be open for a 24 hour period.
I am led to believe that this will go 'live' sometime on 2nd March 2010. http://www.sunbeltsoftware.com/twitter/