DCOM

Definition of DCOM The Microsoft Distributed Component Object Model (DCOM) protocol is used to expose application objects via remote procedure calls (RPCs). DCOM has extensions layered on top of the Remote Procedure Call extensions. Refer to the following Microsoft article for more details on DCOM: https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-dcom/4a893f3d-bd29-48cd-9f43-d9777a4415b0.

RPC

Microsoft Remote Procedure Call (RPC) is a protocol defined by Microsoft to allow for distributed communication processes running between clients and servers in a network. RPC offloads the networking-related process management and allows developers to focus on application logic development.