Flash Remoting MX

Macromedia Flash Remoting MX provides the connection between Macromedia Flash and your web application server, making it fast and easy to create Rich Internet Applications. With its powerful yet simple programming model, you can easily integrate rich Macromedia Flash content with applications built using Macromedia ColdFusion MX, Microsoft .NET, Java, and SOAP-based web services.

from: http://www.adobe.com/products/flashremoting/