I just got a new PC preloaded with Windows Vista (I know, Vista is supposedly inferior to XP, but luckily I got a free "Windows 7 Upgrade" offer that I'll be redeeming).
So far so good - the PC was cheap (under $500) at Best Buy, and is quite fast and everything is running smoothly. However, this is the first time I'm using a 64-bit O/S, so I'm having to download the 64-bit versions of files. I was just downloading 7-zip (free, open source WinZip alternative), and ran into the option to download the x64 or IA64 option. Does anyone know which one my 64-bit Windows Vista Home Premium needs?