Adrian, it seems only respond to delay_pool number 1, i try to create 2 delay_pool, just for testing one for a .tar.bz2 and one for .mp3 but somehow it only goes to delay pool 1. i use latest snapshot from squid-2.HEAD Squid Cache: Version 2.HEAD-20080406 configure options: '--prefix=/squid' '--enable-storeio=null,diskd,ufs' '--with-pthreads' '--enable-ssl' '--enable-underscores' '--disable-ident-lookups' '--enable-removal-policies=heap,lru' '--disable-hostname-checks' '--enable-delay-pools' '--enable-cache-digests' '--disable-wccp' '--disable-wccpv2' '--enable-stacktraces' '--enable-follow-x-forwarded-for' '--enable-x-accelerator-vary' '--enable-default-err-languages=English' '--enable-err-languages=English' '--enable-pf-transparent' '--enable-snmp' 'CC=cc' 'CFLAGS=-O2 -pipe' delay_pools 2 delay_class 1 2 delay_parameters 1 -1/-1 4000/1000000 delay_body_max_size 600000 1 allow tarbz2acl delay_body_max_size 600000 1 deny all delay_class 2 2 delay_parameters 2 -1/-1 4000/1000000 delay_body_max_size 500000 2 allow mp3acl delay_body_max_size 500000 2 deny all acl tarbz2acl url_regex -i \.tar.bz2$ acl mp3acl url_regex -i \.mp3$ here's from active_request : uri http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.24.4.tar.bz2 log_type TCP_MISS out.offset 143624, out.size 143766 req_sz 556 entry 0x8567f740/17703B755F522F075F901428035E6188 old_entry 0x0/N/A start 1207750419.715811 (30.298375 seconds ago) username - delay_pool 1 uri http://mp3.funcafe.web.id/%A0.hack/Mizuki%20Kyouka%20(ALI%20PROJECT).mp3 log_type TCP_MISS out.offset 1116376, out.size 1116551 req_sz 535 entry 0x89d8a800/66DA77014FC6E7482154079E8434AC0C old_entry 0x0/N/A start 1207750412.390307 (37.623879 seconds ago) username - delay_pool 1 regards, Agung __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com