I have been playing D3 for a long while now on a 98 machine, got this grand new XP machine and when i double click setup to install nothing happens what so ever as if its rejecting the install file.
Have you tried setting the compatibility on the setup .exe to an earlier version of Windows? If you don't know how, right-click, hit Properties, and look under the Compatibility tab. D3 should normally install fine under XP, but I have heard of your problem in the past.
Ok i didnt have the windows version, now i do, it starts to install now and i get that error someone else here had, something about error while move process?