Turn ON/OFF Bluetooth, WiFi and other devices (what I've discovered so far)

[BLUE]

I'll let you know what the dealer and the manufacturer will answer me as
soon as possible.
As far as now I've been capable or turning ON/OFF:

- the RFID reader using dealer supplied
executables (PowerAPIon/off.exe)
- CF WiFi and any other expansion card
using "Psion Mobile Devices SDK"
Regarding Bluetooth I've tried using unsuccessfully:

- SetPowerRequirement (coredll.dll)
- Psion Mobile Devices SDK
- BluetoothRadio.BluetoothRadioMode (32feet)
- BthSetMode (Bthutil.dll)

Googling I've found that 32feet and Microsoft methods are based on
Bthutil.dll library.
MSDN it's wrong when it says it's supported from Windows CE 4.2: it's
missing!!!
I think it's only supported on Pocket PC 2003 and later (Windows Mobile).

Windows can disable Bluetooth so it's possible to do it; moreover Pocket PC
2003 is based on CE 4.2 so I think that copying Bthutil.dll on my device it
will work!
Does anybody have a Pocket PC 2003 and could supply me that DLL?

My dream was making a DLL to power on/off devices calling Windows CE APIs,
but if it is impossible I'm happy to use dealer supplied EXEs and Psion
DLLs, but as for Bluetooth if I don't have Bthutil.dll, it cannot be done.
Thnak you everybody,
Luigi.