MSMQ over Internet Example

I am looking for a simple real-life message queing example that can exchange small messages of 1K or less to ASCII files of 50MB or more, asynchronously, that will run over the internet (computers not in domain or even workgroup).

All computersare Windows 2000. VB is the preferred language.

Purpose is educational, so example should be easy, documented and tryable.

Pointers to someone else’s answer would also help.

Points will be increased (a lot) for viable answer.