How about this...
I d/l and purchase a prog called Downloader Pro. I get the Key and everything is fine. About a year later I feel my H/D is fried and replace it. I re-install winXP, etc, etc. When I go to install D/L'er Pro I enter the same key and get a message that says....."That Key is over a year old..blah..blah...blah....you need to purchase an upgrade" So, if like you guys say, they are not grabbing my IP add, then they must be laying in some cookie or something....?? Or maybe they just log the time and date that I entered the key the first time and then they have it for Ref.
Anyway, beyond the whole business about how they track users, what do you guys think about the fact that I can no longer use that program...that I paid for.
J