Need to have a single instance of a dependency container exist for a WCF service

Question

The idea is to use DI container on my service contract implementation to instantiate my Business and Data classes.

The reason I need to do it this way, is that I have one service contract that deals with different client requests. Each client request corresponds to different Business class

Answer 1

That sounds like a good idea. Implementing custom ServiceHostFactory, ServiceHost and IInstanceProvider does the trick.