The MarshalByRefObject..::.MemberwiseClone(Boolean) method creates a shallow copy by creating a new MarshalByRefObject object, and then copying the nonstatic fields of the current MarshalByRefObject object to the new object. If a field is a value type, a bit-by-bit copy of the field is performed. If a field is a reference type, the reference is copied but the referred object is not; therefore, the original object and its clone refer to the same object.
For example, consider a MarshalByRefObject object called X that references objects A and B. Object B, in turn, references object C. A shallow copy of X creates new object X2 that also references objects A and B. In contrast, a deep copy of X creates a new object X2 that references the new objects A2 and B2, which are copies of A and B. B2, in turn, references the new object C2, which is a copy C. Use a class that implements the ICloneable interface to perform a deep or shallow copy of an object.
The identity of a MarshalByRefObject object is defined as the remote server object that is the target of a remoting client call. By default, the memberwise clone of a MarshalByRefObject object has the same identity as the original object, which is typically not the correct behavior for clones of server-side objects that are marshaled across a remoting boundary to the client side. Specify false, which is usually appropriate, to delete the identity of the clone and cause a new identity to be assigned when the clone is marshaled across a remoting boundary, or true to cause the clone to retain the identity of the original MarshalByRefObject object. The MarshalByRefObject..::.MemberwiseClone method is intended to be used by developers implementing remote server objects.