localConnection problem

I have 2 swf files. one is in my computer (send.swf), the other is in my friend's computer (receive.swf).
I want to send a message from send.swf to receive.swf through the internet.
In order to do so,
I read about the object "localConnection" and I know how to send a message when the files (send.swf and receive.swf) are stored in a website (or in different websites) because i know their domains.
But what I want is to send a message when the file send.swf is in my computer and receive.swf is in my friend's computer.
I don't know how to connect between the files,
Can you help me connect between the files?

- Someone told me that I need to use a side server script,
(asp 4 example).
I have some experience in asp but, how???

- Isn't there an other way? Maybe to define a domain to my computer
and to my friend's computer?