Dell bluetooth headset doesnt work in windows 7,was working in windows vista

After all the troubleshooting and no answers from any official support, heres the answer to this problem:

Installing Bluetooth Headset in Windows 7 / Windows Server 2008

Due to the fact that Windows Vista doesn’t support Bluetooth headset profile, if you want to use a Bluetooth headset with your adapter, you’ll need a little creative workaround to add the headset profile to the default Microsoft stack. Download either of the x86 or x64 compilations of the CSR Bluetooth driver and extract its contents to a folder. When you try to pair your headset to your computer, Windows will ask for drivers for the headset since it doesn’t find the appropriate headset profile. Point Windows to the folder where you have extracted the CSR drivers to make it work. Make sure you go into the device in the Bluetooth Devices panel and check off the boxes for headset, etc.

Download Links

• Download CSR Bluetooth Driver v1.0.0.376 for Windows Vista / Windows Server 2008 x86 (32-bit) as a 216 kB (221,687 bytes) CAB file which should extract to 674 kB (691,122 bytes)
• Download CSR Bluetooth Driver v1.0.0.376 for Windows Vista / Windows Server 2008 x64 (64-bit) as a 232 kB (237,897 bytes) CAB file which should extract to 773 kB (792,118 bytes)

CAB File Listing

Both the 32-bit and 64-bit drivers are developed by CSR plc and include the following files:

bthaudiohf.cat, bthaudiohf.inf, bthaudiohf.sys

• Description: Bluetooth Hands-free Audio (BthAudioHF)
• Device Description: Bluetooth Hands-free Audio Device
• Display Name: BthAudioHF Service
• Service Description: Bluetooth Hands-free Audio Service
• User Mode Service Display Name: Handsfree Headset Service
• User Mode Service Description: Enables wireless Bluetooth headsets to run on this computer. If this service is stopped or disabled, then Bluetooth headsets will not function properly on this machine.
• Version: 1.0.0.376, 11/20/2006

bthav.cat, bthav.inf, bthav.sys

• Description: Bluetooth AV (BthAv)
• Device Description: Bluetooth Stereo Audio
• Service Description: Bluetooth AV Profile
• Pins: Bluetooth Audio Capturer, Bluetooth Audio Renderer
• Version: 1.0.0.357, 10/11/2006

bthavrcp.cat, bthavrcp.inf, bthavrcp.sys

• Description: Bluetooth AVRCP (BthAvrcp)
• Device Description: Bluetooth Remote Control Device
• Service Description: Bluetooth AVRCP Profile
• Version: 1.0.0.357, 10/11/2006

bthfilt.cat, bthfilt.inf, bthfilt.sys

• Description: Bluetooth Filter Driver (BthFilt)
• Service Description: Bluetooth Command Filter
• Version: 1.0.0.370, 11/06/2006

hfgservice.dll

• Description: Handsfree Headset Service
• Version: 1.0.0.376

hfgservice_ps.dll

• Description: HFGService Proxy Stub Library
• Version: 1.0.0.376
  
  Flip Side:
  Only the drivers for the stereo sound wouldn't install, which is a pity as the headset sound quality is like telephone quality. Researching further for getting this working. Cheers!!!