hey,guys i found this
"If you are working with Windows Vista and above, there are Group Policy options that give you fine grained control over which USB devices are allowed or not allowed. (If you have to support WinXP, see the other answers listed here.)
In Windows Vista or above, go to the group policy editor and drill down to Computer Configuration\Administrative Templates\System\Device Installation\Device Installation Restrictions
There you will find options to white list of black list devices either by specific device IDs or by the class of device. There is also a very important policy at the bottom that allows you to block everything not covered by the other polices.
All you have to know is either the Hardware ID of the device or the Device Class guid. Both of these things can be found in Device Manager if you plug a device into the machine.
Using the policies that are there you could, for example, allows all mice and keyboards, allow a specific model of a USB scanner, and block everything else"
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Can anyone verfily this????? can this be done, im not using Vista,but if this works then,i cetainly will.
