How to communicate between WCF service and host application?

Question

I created an WCF service through this tutorial. This works great, no problems here. Now I am hosting the service in an Managed Application. But at the same time I would like

Answer 1

It is like communication between threads. You need some shared variable with proper locking / synchronization. Your host application will write to this variable and your service will be able to read from that variable.