Hi, Newbie here. Please help me regarding this. I notice that we can do online scanning with AVG antispyware. So, what's the differences between the online scanning and the purchased version? I know we have to download the signature when want to do the online scanning, but I do not mind downloading each time doing the online scanning. Please help me, for advice. I need to know, because I am undecided whether to buy AVG antispyware purchased version or just use their online scanning.