Hi Guido, Thank you for your email. I added the .exe extension and now squid starts without any errors. However, I have a feeling that it does not talk to Micosoft Active Directory to authenticate users - if I key in an arbitary value for the -w "password" option, squid still starts. I was expecting to see an error. cache.log has the following entry: 2011/01/27 16:51:09| Accepting proxy HTTP connections at 0.0.0.0, port 3128, FD 14. Is that normal? Also if I try to use a browser (I used Firefox)- it prompts for user credentials, but if I use any usernames in Microsoft Active Directory it does not authenticate against those usernames. The browser keeps on promptimng for a username and a password. access.log is filled with TCP_DENIED/407 errors. Any assistance is muchly appreciated. Thanks and Regards Lakshman ________________________________________ From: Guido Serassio [guido.serassio@xxxxxxxxxxxxxxxxx] Sent: Sunday, 13 February 2011 5:35 PM To: Liyanage, Lakshman; squid-users@xxxxxxxxxxxxxxx Subject: R: Configuring SQUID in Windows to authenticate with Active Directory Hi, You must add the .exe extension after squid_ldap_auth as noted in the documentation. Regards Guido Serassio Acme Consulting S.r.l. Microsoft Gold Certified Partner Via Lucia Savarino, 1 10098 - Rivoli (TO) - ITALY Tel. : +39.011.9530135 Fax. : +39.011.9781115 Email: guido.serassio@xxxxxxxxxxxxxxxxx WWW: http://www.acmeconsulting.it > -----Messaggio originale----- > Da: Liyanage, Lakshman [mailto:lakshman.liyanage@xxxxxxxxxx] > Inviato: sabato 12 febbraio 2011 4.41 > A: squid-users@xxxxxxxxxxxxxxx > Oggetto: Configuring SQUID in Windows to authenticate with > Active Directory > > Hello All, > I am new to SQUID and hence require some help. > I have SQUID 2.7 Stable8 installed on a Windows Server 2008 R2. I am now > trying to configure it to use MS Active Directory. I have the following > lines in the .conf file: > ----- > auth_param basic program c:/squid/libexec/squid_ldap_auth -R -b "dc=ad- > mycompany,dc=domain,dc=com" -D "cn=admin,cn=Users,dc=ad- > mycompany,dc=domain,dc=com" -w "password" -f sAMAccountName=%s -h > myipnumber > auth_param basic children 5 > auth_param basic realm My_Company > auth_param basic credentialsttl 5 minute > ------ > When I try to start SQUID, Windows throws" Error 1067: The process > terminated unexpectedly" at me. I have a web server/service running on > port 80 and 443. > What am I missing here? > Many many thanks for your help > > Lakshman