Dear all I'm writing this topic here because it seems that the dansguardian mailing list is very silent. I have set squid 3.2 with nlm has this #--------- NTLM AUTH settings auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic auth_param ntlm children 15 auth_param basic children 15 auth_param basic credentialsttl 5 hours auth_param basic casesensitive off auth_param basic realm Squid/NTLM proxy-caching web server authenticate_cache_garbage_interval 10 seconds auth_param basic credentialsttl 2 hour authenticate_ttl 1 hour authenticate_ip_ttl 60 seconds ** The NTLM authentication with "only squid" works fine *** But, when adding dansguardian with proxy-ntlm plugin there is this error Dec 20 11:48:18 squid32-64 squid[22693]: storeLateRelease: released 0 objects Dec 20 11:48:21 squid32-64 squid[22693]: Starting new ntlmauthenticator helpers... Dec 20 11:48:21 squid32-64 squid[22693]: helperOpenServers: Starting 1/15 'ntlm_auth' processes Dec 20 11:48:21 squid32-64 dansguardian[22681]: NTLM - Cannot initialise conversion from UTF-16LE to UTF-8: Invalid argument Dec 20 11:48:21 squid32-64 dansguardian[22681]: Auth plugin returned error code: -2 Dec 20 11:48:21 squid32-64 dansguardian[22681]: NTLM - Cannot initialise conversion from UTF-16LE to UTF-8: Invalid argument Dec 20 11:48:21 squid32-64 dansguardian[22681]: Auth plugin returned error code: -2 Does anybody meet this issue ? What does "Cannot initialise conversion from UTF-16LE to UTF-8 means" ? Best regards