This document discusses how to call a flow or subflow from one Mule application to another running on the same server. It proposes creating a domain project containing both applications and defining a shared VM connector. The applications can then connect VM components to the shared connector to communicate between flows and subflows across the applications. Testing involves deploying the domain project, calling a URL that triggers application 1's flow, and verifying in the console that application 2's flow received the message via the VM connector.