samba - May 2008 - Samba Printer shares - add printer port winxp

hello list,

thanks for the great piece of software :) now to my problem:

i setup samba long time ago with Version 3.0.14a-Debian. Now i want to 
put my samba server into a fax gateway.

i create a printcap entry like the following:

fax:\
   :lp=/dev/null:\
   :sd=/var/spool/lpd/faxlp:\
   :if=/usr/local/bin/sambafax:\
   :sh:sf:mx#0:

and add a referring entry stanza into smb.conf

[fax]
         comment = Fax-Server
         print command = lpr -P%p %f
         path = /var/spool/fax
         printable = yes
         force user = lp
         read only = no
         writeable = yes
         browseable = yes
         guest ok = yes


Now, if i try to add the share fax as a printer port on my windows xp 
clients, a problem comes up:

i can connect to the server and view the shared printer but i can't 
add \\servername\share as a new port - i always get "Der angegebene 
Anschluss konnte nicht hinzugef?gt werden. Der Vorgang konnte nicht 
abgeschlossen werden" which means the specified port can't be added - 
the task can't be completed.

please see the log file[1] http://rafb.net/p/pBKywS41.html

Any help is greatly appreciated

Best regards

stefan

[1] http://rafb.net/p/pBKywS41.html