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.


Definition of gRPC RPC is an evolution to remote procedure call (RPC) application protocol for streaming messages between clients and servers. gRPC was originally developed by Google. It is an open source protocol and it is part of the Cloud Native Computing Foundation (CNCF) services.


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.