I'm installing my proxy squid version 2.5STABLE3 under OpenBSD
and I'm trying to take it authenticate for samba then using smb_auth
I installed squid and compiled smb_auth

/usr/local/libexec/smb_auth -W DDD -d
user password
Domain name: DDD
Pass-through authentication: no
Query address options:
Domain controller IP address: XXX.XXX.XXX
Domain controller NETBIOS name: XXX
Contents of //XXX/NETLOGON/proxyauth: allow

and my /etc/squid/squid.conf

authenticate_program /usr/local/libexec/smb_auth -W CAMPINAS

but when I start squid it show many erros example:

2003/01/09 17:33:01| parseConfigFile: line 19
unrecognized: 'authenticate_program /usr/local/libexec/smb_auth -W DDD '

someone have this problem?

I read http://www.hacom.nl/~richard/software/smb_auth.html
and FAQ squid-cache.org