Users spending hours watching video and downloading mp3!!! Here is the way, you can ban those sites that are bandwidth hungry. You can add a policy in your ISA server and apply. This will save lots of download limit and speed up your internet during peak hours.
|Block Forbidden Sites||Deny||All OutBound Traffic||internal||Restricted Sites||All Users|
Open ISA management console>Tasks>Create New Access Policy
Click on Add>Domain Name Set>Type “Restricted Sites” on Name>Add sites you want to block>click Ok
Select restricted sites and click on add
here you can add your desired group of users you want to ban, I added All Users.
Click finish and apply. Log on to any computer using a test user placed in above mentioned group and browse restricted site. you will see it is blocked by proxy.