Windows XP 64 bits compatible

[Boleslaus]

How do I know if my software / peripherals are compatible with Windows XP 64-bit?

Thank you!

[robodude]

total compatibility is no problem
but to enjoy the power of 64-bit, requires software programmer in 64 bit and only certain Pro software can be there and of course we need a 64 bit processor

[Boleslaus]

Everything is compatible? I ask because I want to buy four bars of two gigabytes each !

"I asked for advice because I hear a lot here and there that the 64-bit version does not support so many drivers