How to pair with device with authentication off

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C#

WinMobile

Hello,

I have a Motorola MC65 device running Windows Mobile 6.5. I wrote an application to scan for bluetooth devices and pair/set COM port for each device. Everything works with authentication turned on. How do I pair with the device on my handheld with Authentication turned off? This works in the Microsoft's built-in Bluetooth utility if you uncheck Secure Connection. I want to be able to implement this.

I looked at the MSDN Library but I cannot find any methods that would allow me to pair without authentication.
I tried calling these two methods

BthWriteAuthenticationEnable

BthAuthenticate

to disable authenication and then authenticate, but it did not work. I get an ERROR_NO_SESSION_KEY(1394) error. Can anyone point me to the right direction? I am currently using C# and P/Invoke to call these methods?

Below is the library I was looking at:
http://msdn.microsoft.com/en-us/library/ms886640.aspx[^]

Thanks in advance