This tutorial describes how to use Microsoft Visual Studio 2005 to create a C# client-server application from scratch. This application parses an ADT^A04 message, adds next of kin data as one or more NK1 segments, and then generates and displays the modified message.

	Note that this is a very simple example whose purpose is to show you how to use Chameleon in the C# environment. In particular, this application does not use sockets to obtain messages from another application.

In this tutorial, you will:

• Create a simple C# application to parse and generate HL7 messages;
• Create a VMD file containing a message definition;
• Generate stubcode that enables your application to interact with Chameleon;
• Import the Chameleon libraries into your application;
• Write code to obtain an HL7 message, obtain user input, and generate a modified message;
• Test the application you have just created.