Prior to iWOW I had purchased Volume Logic. It quit working with the introduction of iTunes 7. A couple of months later iWOW came to market and Volume Logic still did not work so I bought iWOW. (Both are similar creations of Rogue Amoeba.) iWOW requires an active internet connection -- how uncivilized -- and installed okay on my home system, but it conflicted with the non-working Volume Logic, so out came VL. Due to firewall blocking iWOW would not install at work -- very limiting. Home: iWOW; Work: nothing. Shortly afterwards Volume Logic was updated to work with iTunes 7. I installed it at work and replaced iWOW at home to have the same configuration at each location. Next, iWOW is updated to end the conflict with Volume Logic. I think now I will be able, at least at home, to have both installed and have choices! It was not to be. iWOW now will not install because their Big Brother server says I have installed it too many times. I agree. I have installed it too many times -- for it not to be working. One problem: that serial number is not in use anywhere on this planet. I emailed them about this three weeks ago and have not even had the courtesy of an automated response. Keep your money. If the product does not work for you after the purchase is complete you are just out of luck. Take a look at Volume Logic instead. <http://www.volumelogic.com/>