block downloading using ISA

Dear Expert:
There's a site called (www.metacafe.com) , this site contain funny movie , as an administrator for my network I block the access to this site from ISA 2000 because it's use most of my network bandwidth when users downlaoding movies, the problem is whey you access this site there is a tool you download and then this tool doanload movies without need to access the site and that use most of the bandwidth . I try to tracking the port that tool use but I find that tool change the port always .
how can block this kind of download by ISA 2000?  
eng_khalid101Asked:
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Keith AlabasterConnect With a Mentor Enterprise ArchitectCommented:
open the GUI
select sites and content rules- right click and select new - rule
give it a name like block stuff and on the next screen select deny
select custom
select the destination set (create a domain set/url set for where you want to block). In your case, you will need to check out your ISA logs.
On the schedule,  select always.
select the client set or all users etc
Now we have content types......
Select the Only the following content types instead of any content type.
Select the types you want to block.
Because this is a deny rule, it lets all pass EXCEPT those that you tick; they will be denied.


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imnajamCommented:
Hi eng_khalid101,

try blocking multimedia extensions like .avi, .asf, .mpeg, .mpg etc...

Cheers!
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eng_khalid101Author Commented:
how can I block these extensions from ISA
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eng_khalid101Author Commented:
thanks your idea is good
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Keith AlabasterEnterprise ArchitectCommented:
Your welcome
Thanks
Keith :)
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