Bluetooth USB Dongle
I bought a Trust brand USB Bluetooth Dongle recently.
This adapter worked with Windows XP installed Desktop, but a Windows Vista (Home Edition) installed Desktop did not find a driver for this USB Bluetooth dongle.
After searching a hit in the web, I found a page where how to make it recognized by Windows Vista :
BCM2045A Drivers for Vista not available
When you want to connect with your cel phone, right-click bluetooth icon to show options
to send a file or receive a file from your bluetooth integrated phone or other devices.
Then, my bluetooth stereo headset worked nicely.
However, it seems it is much easier to install all necessary driver and software at Broadcom software download page.
Look for USB Bluetooth Dongle!
http://ayumex.lunarpages.com/article.php/usb-bluetooth-dongle-vista