how to connect IRda Device in desktop PC ?

I have a computer equipped in IrDA port and I'm wandering how to make
use of it in my program under WindowsXP. There's Socket class, which has a
constructor, where I can pass something like this (irda, stream, ip). But
before I can use this socket it has to be bind with a concrete device (IrDA
port).

And that's my question, how to do that Most classes are available only
under Windows CE (for example IrDAEndPoint).

Can anyone help me I want to connect two computers and/or computer with
Irda Device I stress that this program have to be in C# and under
WindowsXP !!