Looks like he means the Windows itself name/password (or NT domain or Netware, etc.).
I don't think you can do this... For one thing it would be a HUGE security hole. Image getting this info from someone who was on a dedicated line of some type, dsl w/static ip, DS-x, OC-x network, etc. If file sharing was on, you have access to everything on the machine he did. And it's not like file sharing or windows needs any more security holes than they've got already.
Is this for an internet site or like a company's intranet? If it is just an intranet and you have NT user logins, you can use the Request.ServerVariables("LOGON_USER") variable for the username. You might have to strip the domain off it, something like:
iBackSlashPosition = instr(1, request.servervariables("LOGON_USER"), "\")
sUserID = mid(request.servervariables("LOGON_USER"), iBackSlashPosition + 1, len(request.servervariables("LOGON_USER")))
That's probably not the most efficient, just pulled it from some code I had.