Application and device Control (ADC) with Windows 7

Dear All

I using SEP 11.x and have been config ADC funtion. I see that device control function not effected for windows 7 but windows XP is OK. Example : I banned the use of usb device=>result :

• For windows XP : OK, not dectech when user plug USB device port
• For windwos 7 or vista : not OK. still used USB device

can you help me this issue

Thanks/Duy