Extensibility is one of the most important concerns for any programming world. While developing a framework, a good architect always creates hooks, which lets the user explore these hooks and modify the way the framework behaves. WCF, being a powerful and simple tool to create services, also has a lot of hooks on its runtime, which will enable developers to write their own code and modify the way WCF behaves in certain scenarios. There are a great number of hooks available as interfaces in WCF, which allow you to change either the description or runtime of the WCF service.
The description of a service means all the things that are needed to start a service under the WCF environment. It includes:
All aspects that WCF needs to start a service
Endpoints (address, binding, and contract)
Local behaviors
After ServiceHost is opened, we cannot change the description of the service until it is closed and restarted. When the ServiceHost service is opened...