I've just reinstalled XP on my laptop and managed to disable networking by killing too many services. Back in the day I remember a website that listed all the services, what they actually do and whether they were needed. It also had a handy registry download that put this information in the management console. I have vague memories of this being called something like 'black widow', but can't for the life of me find it now.
Anyone else remember what I'm talking about and remember the name properly? Failing that is their a similar sight around which isn't just lame-ware like all the web searches throw up?