Spyware Blaster Methods

First of all the product is great. Your doing a great job. I like the new release of your Spyware Blaster. The Killbits is simply a killer idea. Anyhow, my question to Javacool is that I notice in your release you have the cookie protection. I see that you insert domain addresses in the P3P area of the registry. How does this differ from using the ZoneMap\Domains area? Also, this limits only to IE users. Why not insert the domain into the users host file this prevents from anything on the machine accessing those sites?

Curious minds want to know!