This bluetooth dongle is excellent, very fast and works very well straight out of the box.
The trick is to just plug it into a USB port and just let Windows take care of the installation. Don't bother with the Blue Soleil software.
A few years ago, I had the misfortune to have a bluetooth dongle that came with Blue Soleil software (which is what comes with this)!
With Blue Soleil, I had nothing but problems and I am kind of reluctant to try it out again.
The dongle itself is a little wider than my previous one and meant that I was unable to insert this between other USB devices on the hub.
So just plug this in on the end of your USB hub and there is no problem.
Using Windows 7 X64, I just plugged it in and it worked immediately, no fuss, no hassle and no software to install as Windows takes care of it.
Transferring files between phone and PC and vice versa is a breeze with this dongle, you wont be disappointed!