Here are the steps to enable A2DP support in Windows 7.
(1)First download this driver from Anycomm a German headset company:
ftp://drivers.anycom.com/beta/usb200...8500-vista.exe(2)Uninstall all your Bluetooth devices in device manger and remove software also.
Install the downloaded software (No compatibiliy mode required)
(3)Scan for hardware changes in device manager
(4)Go to you audio output devices -> Choose the headset as an output.
Cheers enjoy stereo bluetooth music and movies!