how to know windows xp user names for a computer resident on my lan?

Question

Is there any way to know the users of windows xp for some computer attached to my LAN? .... without any shared folder or some thing like that

unfortunately my LAN doesn't have administrative computer or server...it's the simple way of lan you can think

Answer 1

Well, user names are not OS specific. Likely, if you have a correctly established LAN, then it should have one administrative computer (perhaps a server if your LAN is a domain), which maintains user data for the network.