Registers a dynamic property implementing the System.Runtime.Remoting.Contexts.IDynamicProperty interface with the remoting service.
Based on obj and ctx, prop is asked to contribute a sink that is placed at some location in the path of remoting calls. If multiple properties are registered, their sinks will be called in an arbitrary order that can change between calls.
If obj is not null, and then if it is a proxy, all calls made on the proxy are intercepted. Otherwise, if obj is a real object, all calls on the object are intercepted. The ctx parameter must be null.
If ctx is not null, obj must be null and all calls entering and leaving the context are intercepted.
If both ctx and obj are null, all calls entering and leaving all contexts are intercepted.