xml data communication between two web application using XML ,asp.net

See more:

C#

ASP.NET

XML

Dear Friends,

I am using VS2008,asp.net,xml.
I have a web application.
I want to pass data between two web applications through XML.
Web application 1 will send request to second web application to get the data of one location as XML.
Then Web application 2 will read the request and sent the requested XML data to web application 1.
Then web application 1 will send a success update message if success. Then web application 2 will give response message an successful updated response .

How to do this,

Thanks in advance
george