Ok, i know that there are some 90 days and 180 NAV and NIS OEM version available for downloads, and you can only use it once, it won't let you activate second time with the same version right? does this have something to do with MAC address??
because I think i figured out a way to activate the same version for a second time and more. It only took me couple of minutes to grab one key. I won't say it out how, but.....Hints: vmware, xp mode.