Dear all, we are using squid 3.1.0.9 libecap and vigos-ecap-gzip-adapter here my squid.conf acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localnet http_access deny all http_port 3128 cache_dir aufs /cache0 50000 128 256 hierarchy_stoplist cgi-bin ? coredump_dir /usr/local/squid/var/cache refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 ecap_enable on ecap_service gzip_service respmod_precache 0 ecap://www.vigos.com/ecap_gzip loadable_modules /usr/local/lib/ecap_adapter_gzip.so adaptation_access gzip_service allow all When i started squid -d 9, appears following error (squid): adapter.cc:17: virtual void libecap::adapter::Service::start(): Assertion `false' failed. if i disable ecap in squid.conf, squid would run up. any idea ?. Thanks. Johan