how to send SMS in pocket pc..

Hi....

I need to create a pocket pc application that can send sms, i am jus using a normal hp IPAQ pocket pc.
so, i searched and found a page in the msdn website that gave me a sample codes.
So, i tried to run the application but i hav an message box displaying "MissingMethodException"

The page i downloaded from is
http://msdn.microsoft.com/library/de...tcfsendsms.asp

I am not sure how to do the coding for sms service in the pocket pc,
so anyone any idea how and anyone know what is the problem with the codes from the msdn website...

Thanks for the help..... :)