Q. How to find out good antivirus product:
Ans. A good antivirus product is one who have received security certificate from trusted institute like AV-Test or VB100.
NPAV does not have any certification from security institute like AV-Test or VB100. This product does not even qualify for it. Dont wast you money for this product. There are many far better certified antivirus products available in the market of same price.
I would recommend: Ozone Antivirus.