What is meant by COM/DCOM ?

Question

Something related to VB 6 i suppose.........

Answer 1

dcom: distributed COM

com: Component Object Model

Answer 2

DCOM:
Distributed Component Object Model (DCOM) is a set of Microsoft concepts and program interfaces in which client program objects can request services from server program objects on other computers in a network. DCOM is based on the Component Object Model (COM), which provides a set of interfaces allowing clients and servers to communicate within the same computer.

At old times, when application development started, we worked with COM, which allowed us to separate UI applications from functional libraries (DLLs). Later we received DCOM that allowed us to communicate between two different components in different computers. DCOM is a very proprietary RPC-based communication protocol for COM-based distributed component architectures. Even though DCOM allows us to create scalable and reliable architectures in the Intranet environment, there are a lot of problems with DCOM when you try to integrate it with different platforms and technologies in an Internet environment.

Answer 3

COM - Component Object Model; a specification for writing reusable software components; an infrastructure that allows objects to communicate between processes and computers. All VB objects, including forms and controls, are COM objects. One of the main strengths of COM is that it integrates so many distributed application services in one package.


DCOM - Distributed COM; COM over a wire; COM between more than one computer; COM with RPC.

Answer 4

extinct.