it's part of the core of xp. it is just telling you that one your your services is trying to access the internet, you can try disabling unncessary services to see which one it might be, but it's mostly harmless unless your paranoid
New to XP. I just like knowing what things are and what they are doing.
It has saved my butt in the past when something unknown pops up. With XP I am having to learn all over and re-think my ancient ways.