Windows 7 came with no A2DP support and MS asked bluetooth hardware manufacturer to add this feature in driver upgrade. All bluetooth hardware on laptop where most of the time we need A2DP are made by Broadcomm (widcomm software), Toshiba or CSR. The last 2 manufacturer seem to have A2DP in Vista which should work in W7 but for Broadcomm nothing around. I have a Motorola S9 that I wanted to connect to Dell d410 laptop with no success. This old dell laptop comes with a BT 355 internal blutooth adapter and refused to connect to my headset. After looking around for a few time a figured out how to enable A2DP in Windows 7. First download this driver from Anycomm a German headset company: FTP drivers.anycom.com/beta/usb200-250-500-550/anycom-blue-usb-200-250-500-550-v6-2-0-8500-vista.exe This file is no longer available from any known source. Special thanks to someone for reporting this problem. FTP links are now often also considered insecure. Use SFTP or other known secure methods for transferring files in this manner. - Updated by forum administrator 8/26/2013 uninstall all your Bluetooth devices in device manger and ask to delete software also. Install the downloaded software natively (no compatibiliy mode needed) scan now for hardware changes in device manager...it should install all devices including an audio handsfree driver. Scan for your bluetooth audio and connect. Go to you audio output devices and select the headset as an output. Enjoy now stereo bluetooth music and movies!