The Virtual Machine Communication Interface (VMCI) supports fast and efficient communication between guest virtual machines and their host server.
VMware vSockets 6.0
Released 12 MAR 2015, with vSphere 6.0.
The vSockets library provides a communications API similar to Berkeley UNIX sockets and Windows sockets. You can program vSockets using C or C++. The vSockets header file is installed with VMware Tools on guest virtual machines.