The Dell Bluetooth module arrived yester-day. Physical installation seemed to go off without a hitch, the little Bluetooth light on the case now lights-up, and my Linux installation sees the device (when it is activated).
However, the Windows program for setting-up a protocol stack isn't working. It will run for a while, doing no more than showing a little bit of disk activity, then tell me to activate the unit (by pressing Fn+F2). It doesn't seem to much matter what I do at that point, whether it be to turn the device off and back on, or just turn it off; the program repeats its unhelpful behavior.
The Windows package in which that set-up program was included is obnoxious in other ways. Although it promises otherwise, its only function after a failed or damaged installation is to remove all of the installation. And when one seeks a reïnstallation, it insists upon re-writing the firmware of the unit, which takes a fair amount of time. Partly, this is dat Ol' Debbil, software that assumes that the user is more stupid than the code.