What does this mean? (First time download questions)

I have WinXP SP2. Want to download Comoo Firewall but the info. said that Win. XP 32 was compatible but not 64 bit. What does this mean and how do I find out what my system is. I have checked everything I know but couldn’t find out. Thanks for any help.

Hi Boleta

It means if your PCs CPU is a 32bit chip or a 64bit chip (the new snazzy ones). Since, you seem to be saying that your system reports as 32bit, then you’ll be fine.