I have an Compaq nx7400 notebook. This notebook only have Windows XP/Vista drivers on the HP site. But when you want to activate bleutooth it isn’t working because you need the HP Wireless Assistant to enable the bluetooth radio.
You can find the a Windows 7 compatible HP Wireless Assistant over here: http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?softwareitem=ob-76368-1&lc=en&dlc=en&cc=us&product=3999409&os=4062&lang=en
You can find the windows 7 compatible Bleutooth drivers over here: http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?swItem=ob-76382-1&lang=en&cc=us&idx=3&mode=4