Building plugin on windows in visual studio

I am having an issue building a new plugin using visual studio… I don’t see how to link to the functions inside the EXE that are referenced in mosquitto_broker.h? I assume that I need to point the linker at the exe… (maybe using a .def and/or .a file)?
example:
mosquitto_callback_register
mosquitto_callback_unregister
mosquitto_calloc
mosquitto_free
etc…