This option provides a location for roaming profiles. When the user logs on, a roaming profile will be downloaded from the server to the client and activated for the user who is logging on. When the user logs off, those contents will be uploaded back on the server until the next time the user connects.
It is often more secure to create a separate share exclusively for storing user profiles:
logon path = \\hydra\profile\%U
For more informaiton on this option, see the section
Section 6.6, Logon Scripts," earlier in this chapter.