I use squidnt 2.6 stable4 on windows 2003 and it works perfectly with Active Directory Integration Just a curiosity... Today reading again cache.log I saw an interesting thing: helperOpenServers: Starting 5 'mswin_check_lm_group.exe' processes -------------cache.log--------------- 2006/11/17 08:24:33| DNS Socket created at 0.0.0.0, port 4081, FD 7 2006/11/17 08:24:33| Adding nameserver 172.16.10.101 from squid.conf 2006/11/17 08:24:33| Adding nameserver 172.16.10.27 from squid.conf 2006/11/17 08:24:33| helperStatefulOpenServers: Starting 100 'mswin_ntlm_auth.exe' processes 2006/11/17 08:25:50| helperOpenServers: Starting 5 'mswin_check_lm_group.exe' processes 2006/11/17 08:25:51| Accepting proxy HTTP connections at 0.0.0.0, port 3128, FD 438. 2006/11/17 08:25:51| Accepting ICP messages at 0.0.0.0, port 3130, FD 439. 2006/11/17 08:25:51| Accepting HTCP messages on port 4827, FD 441. 2006/11/17 08:25:51| Accepting SNMP messages on port 3401, FD 442. 2006/11/17 08:25:51| Loaded Icons. 2006/11/17 08:25:51| Ready to serve requests. -------------cache.log--------------- My squid.conf is: -------------squid.con-------------- external_acl_type NT_global_group %LOGIN c:/squid/libexec/mswin_check_lm_group.exe -G -c acl DomainUsers external NT_global_group "c:/squid/etc/DomainUsers.txt" acl Proxy_Messengers_yes external NT_global_group Proxy_Messengers_yes acl Proxy_Internet_Ts external NT_global_group Proxy_Internet_Ts acl Proxy_All_Open external NT_global_group Proxy_All_Open acl Proxy_ftp_porn_block_yes external NT_global_group Proxy_ftp_porn_block_yes auth_param ntlm children 100 -------------squid.con-------------- As you can see I configured 100 ntlm processes but I haven't configured the number of "mswin_check_lm_group.exe" processes. Why squid start 5 processes? I think they are they enough because I haven't problem but I would like to know where is this value taken from and how to change it Thanks Marco Italy