I'd like to use bluetooth headphones/microphone with my desktop computer, but they don't seem to pair successfully?

[John Bullington]

The bluetooth stack available on most versions of windows is out of date enough that this doesn't work. 

Install the new bluetooth stack available @Shen in S:\Software and Resources\Software Installers\Drivers\BT_3.1.1311_s32.exe.

In your system tray you will now have a bluetooth icon that you can left click on and successfully pair most wireless devices.