Someone is claiming to me that Windows XP SP2's firewall re-activates itself spontaneously, even though they (claim) to have turned it off. I have never seen this happen in any of the XP systems I've dealt with, including my own. I'm inclined to think that this user has not really deactivated the firewall like they think they have.
Has anyone ever heard of Windows firewall turning itself on after you have specifically and correctly turned it off?