XmlFlashChat (XFC) is a Client-Server chat system. The Server is based on any DB, ASP.net and XML. The Client is based on Silverlight.
SOAP Interface for .NET Clients, connecting to PHP Based Web-Services. Included is a PHP SOAP Wrapper for C#, VB.NET Clients using type DataSet (read, write!) and the compression in ZIP format to speed up the communcation.