the previous post was from 2009.
Necro posting is frowned upon because so much changes in a short time, so as to render responses a wasted effort.
Please look at the date of the post (and observe the Warning that should have appeared on a thread this old)
Calibre has even a faster cycle, so 6 months is considered 'OLD' (but you won't get the board level warning)
BTW Norton has changed a lot since 2009.