LinkCreate

LinkCreate["name"] creates a MathLink link with the specified name for another program to connect to.

LinkCreate[ ] picks an unused port on your computer system and creates a MathLink link on it.

LinkCreate returns a LinkObject.

You can use LinkCreate and LinkConnect to set up peer-to-peer communication between two Mathematica processes.

The option LinkProtocol specifies the underlying data transport protocol to use.

LinkCreate internally calls a function analogous to the MLOpenArgv() function in the MathLink library.

See The Mathematica Book: Section 2.12.6.

See also: LinkConnect, LinkLaunch, LinkClose.