I have not registered a piece of software other than games, since 1996, not including Lightwave and C4D. Reason being, I was too often ending up on some hellish mailing lists yet when I went to upgrade the company would not have me on file, even though their marketing department did! ; ) I'm not interested in paying to be a market demographic, so I just buy software and use it. Figure my "registration" comes from my name on artwork and tutorials. : ) If a company would track users well and not use my name and address to make side money by selling to marketers I would be much more inclined to register. But my purchase of a product does not give the manufacturer the right to know me personally. So far Newtek and Maxon have been very responsible with my personal information FWIW.