What is the major use of MarshalByRefObject?

Question

What\'s the purpose for MarshalByRefObject?

Answer 1

Another important use of MarshalByRefObject is for implementing AOP via remoting sink-chains.

If you have an object that derives from ContextBoundObject (which itself derives from MarshalByRefObject) you can instantiate it in a separate Context within the same AppDomain and have communications between objects automatically go through the Remoting proxy system - allowing you to plug custom sinks into the Remoting sink-chain.

This ultimately allows you to 'decorate' method calls to your objects and implement cross-cutting services, such as logging and security etc.