The supplied drivers are therefore totally unsuitable for my system configuration. The standard driver of Win 7 work fine, but not for Bluetooth audio devices. I have a BT audio receiver by Belkin, a connection is possible, but the Belkin I28 is not set up correctly (missing device drivers ?!).
Belkin's website is not very helpful. From laptop (T60) and mobile phone (Nokia C7) is possible a coupling without problems.
One would think that the BT dongle Plug'n Play are product today. They are not, at least not by Belkin!