64bits

Im considering upgrading the amount of RAM in my system to 4 GB.
Which using Vista Ultimate x64 is fine.

But i've got dual boot with XP x86.

So just wondering if any on here has got 4GB RAM installed with a dual boot XP x86.
Do i need to use the 3GB switch in the boot.ini for XP, or will XP be ok with 4GB??