Blocking .dll

["Marcin Wasilewski" <marcinwasilewski@xxxxxxxxxxxxxx>]

Hello,

I'm writing to the group because I want to be sure that I done everything as 
it should be, and maybe You will have any suggestions.
I want to block sites with .dll so I use:

acl baddll url_regex -i .dll
acl baddll url_regex -i .*://.*/.*.dll
deny_info ERR_NO_DLL baddll
http_access deny baddll

As for now it is working fine, so is it good enough regex?

Best regards,
Marcin