I can?t share my Xps Computers

I have a site with 5 Xps. computers and A server with netware 4.11, all works ok but in the Xps computers i need the Shell from Novell for XP because i have a printer Shared on the server and now when i need to share a folder from any Xp based computer I cant Logon these and i recived a message with “\\PEER-K7J1YD1U6X\IPC$ need a password . Because? . Anyone have a solution? thanks