ServiceManager.Publish Method (Type, PublishServiceCallback)
Publishes the specified service type, but does not declare an instance. When the service is requested, the Publish service callback will be invoked to create the instance. The callback is invoked only once. After that, the instance it returned is cached.
Assembly: System.Activities.Presentation (in System.Activities.Presentation.dll)
The type of service to publish.
A callback that will be invoked when an instance of the service is needed.
Available since 4.0