I don't know. I use winzip 8.1 shareware, if that helps. and dev, no offense, but I don't see how it could be user error. you download a file, go to it, double-click it, and you get an error saying it's not a valid archive. there's not too much I could have screwed up. and, I also tried downloading noir with 3 different browsers (Opera 7.11, Firebird, and IE6SP1) since I've had a couple issues downloading ZIP's with Opera before. but I had the same result each time, "not a valid archive".