[squid-users] Blocking download video.

Hi everybody....
I am blocking video in configuration file named deny_music and in squidGuardian in blacklist/audio-video.
But some users had discovered a way for download this extension using "?" before the extension.
Exemple:

http://www.xyz.com/video.wmv -> Squid block !! OK !!

http://www.xyz.com/video.wmv? -> Squid don?t block.. Why ???

How can I block this ?

Thanks, and apologize my poor english.

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Caso voc� tenha recebido por engano, por favor, informe o remetente e apague-a de
seu sistema.
Notificamos que � proibido por lei a sua reten��o, dissemina��o, distribui��o, c�pia ou
uso sem expressa autoriza��o do remetente.
Opini�es pessoais do remetente n�o refletem, necessariamente, o ponto de vista da
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Attention: This message was sent for exclusive use of the addressees above
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and law protects its secrecies.
In case that you it has received for deceit, please, it informs the shipper and erases it
of your system.
We notify that law forbids its retention, dissemination, distribution, copy or use without
express authorization.
Personal opinions of the shipper do not reflect, necessarily, the point of view of the
CETIP, which is only divulged by authorized people.
Received on Tue Feb 01 2005 - 09:25:14 MST