Setting network priveleges on a windows 98 server that will protect folders on XP

[ReindeerCAV]

Hi

I need to set a folder on a server at work to be accessible as read only or full access depending on the password. The server is running Windows 98 SE but the client computers are using windows XP home. The trouble is that the windows XP home computers dont ask for passwords when i try to access the folder. Is it possible to make the windows XP home computers ask for a password when i try to access the folder across the network to secure the folder?