Bought this dongle to connect a couple of Nokia handsets to PC Suite under XP on my home PC. Although PC Suite lists the included software as being supported this software stack is a later version which isn't listed. As such it simply doesn't work with PC Suite. I spent an hour poncing about with this before uninstalling the software. And that is the software's saving grace because it installs XP's bluetooth stack when you uninstall. After a reboot both handsets connected via the dongle without a hitch.
The dongle protrudes from the USB port it is pushed into. So if you expect the thing to be almost flush excepting the black top you will be disappointed. About 5mm of the silver socket is visible.
Nonetheless, it costs 5 pounds, it works, when you don't use the included software, and so I'm happy.