MCAD/MCSD Training Guide (70-320): Developing XML Web Services and Server Components with Visual C#™ .NET and the Microsoft .NET Framework

Architecture of Component Services

In this section, you'll learn about the basic components of the COM+ architecture. You'll learn how a COM+ application is organized, how COM+ provides the component services, and how the .NET Framework interacts with COM+.

Serviced Components

One of the most important classes in the System.EnterpriseServices namespace is the ServicedComponent class. Any class that uses enterprise services must derive from the System.EnterpriseServices.ServicedComponent class. Such a class is also called a serviced component. Classes that derive from ServicedComponent must be public and concrete, and must provide a public default constructor. A basic serviced component declaration is as follows:

 using System.EnterpriseServices; ...