Hi, were are trying to use the external Squid authenticator smb_auth (a wrapper to smbclient) to authentciate proxy users off a Windows NT Domain. This works well for ordinary users but fails for users that have an umlaut (e.g. ?, 0xfc) in their username. A network trace shows that the umlaut character in the session setup & X request is changed to 0x00b3. Might that be an error in the conversion to Unicode done in dos_PutUniCode? Mit freundlichen Gr??en / Best Regards Norbert Klasen Avinci - The Know-How Company http://www.avinci.biz