Hi !! I think it is better to use a "rep_mime_tipe" acl, because this way you have better control over what is being downloaded then using file extensions. Regards, Carlos. ------------------- Hello, You're all probably tired of this subject but I'm having a problem with the following config: acl europe src x.x.x.x/x.x.x.x acl germany src x.x.x.x/x.x.x.x acl blockfiles url_regex "/etc/squid/denyfiles.txt" http_access deny blockfiles germany http_access deny blockfiles europe The contents of the denyfiles.txt looks like this: \.exe$ \.zip$ \.mpg$ \.mpeg The problem is that none of the files I want to block and prevent download are actually blocked and can be downloaded. Anyone got any ideas? Many thanks, IM