virtualbox.org

Hello,

I am planning to run a Windows XP Pro guest on a 64bit Linux host (Ahtlon X2 64 Dual Core). All applications that I need to run are 32bit programs. VM will only require a couple Gbs of RAM. VM is for desktop usage. Are there any advantages for me to run 64bit version of Windows? Will it be any faster?

For most 32bit software, there are no performance advantages to running on WinXP 64bit. Unless you plan on using more than 3GB ram, I would opt for 32bit WinXP, which is much more stable, IMO.