MT DORB is a class library implementing ORB (Object Request Broker) for Delphi. It intended to be a fully compliant implementation of CORBA 2.3 standard.
MT DORB currently supports: Multi-threaded ORB;	IDL to Object Pascal mapping; IIOP as native protocol; BOA; POA; Object By Value (OBV); Any; Interceptors; CORBA services: Event service, Naming service.
This product is a great standard-based toolkit for building multi-tier applications.