I have a windows xp pro key will it work with win xp pro x64?

[Timinator94]

I have a windows xp pro key will it work with win xp pro x64?
Also whats the difference between 32 bit and a 64 bit Win xp pro?

 

[Verbatim47]

XP Pro 64 -bit and XP Pro 32 bit are two different things unlike Vista where you can use the key for both 64 and 32 - bit operating systems.

Here is an article about that :
http://en.wikipedia.org/wiki/64-bit#32_vs_64_bit

In a nutshell it is how code and applications are processed, 64 bit is more efficient and faster but much less apparent.

 

[Timinator94]

Thanks.