The Install for the install is a bother. From what Adobe told me, if I buy the up-grade from seven to CS (8) is writes over seven. If I try to restall seven it writes over CS (8). Adobe says it is illegal anyway, you can't have two versions on your desk top. Install seems like Micosoft method. You have numbers you call/use web for additional numbers. If you get a new computer, or upgrade your old on too much, you have to contact Adobe, explain your problem and get new numbers again. I find it annoying. I understand they want to protect their program, but this is a real pain. Adobe has a quality product, but the new install is really annoying and you still have to register seperately.