How do I change the baud rate of the 40NBT in a WM/WINCE device?

Answer

The default baud rate is 115200.

Change the following two registries to set the baud rate:

[HKLM\Software\Microsoft\Bluetooth\HCI] baud : DWORD = 921600

[HKLM\Software\Microsoft\Bluetooth\Transports\BuiltIn\1] baud : DWORD = 921600