"XML Socket Server" Please Help Me

Question

Hello My Friends

I want to improve an application by using "Flash".
I need to write and use "XML SOCKET SERVER" programme. But My problem is that I have found nothing yet about writing "XML SOCKET SERVER" after all my search.
There is no sample, eample, any book or any written explanation. This is why I need your help.

I'll appreciate if you can guide me. I am looking forward your mail.

Kind Regards