Roaming user profile

C:\Documents and Settings\{username}
  Application Data
  Cookies
  Desktop
  Favorites
  Local Settings
    Application Data
    History
    Temp
    Temporary Internet Files
  My Documents
    My Music
    My Pictures
    My Videos
  Recent
  NetHood
  PrintHood
  SendTo
  Start Menu
  Templates
  NTUSER.DAT
  ntuser.dat.LOG
  ntuser.ini
Folder layout of typical Windows 2000/XP user profile. Normally everything except the items within "Local Settings" is stored on the file server as part of a roaming profile.

A roaming user profile is a file synchronization concept in the Windows NT family of operating systems that allows users with a computer joined to a Windows domain to log on to any computer on the same domain and access their documents and have a consistent desktop experience, such as applications remembering toolbar positions and preferences, or the desktop appearance staying the same, while keeping all related files stored locally, to not continuously depend on a fast and reliable network connection to a file server.