beWISE - Edelwise Basic Variables 

Makes task to task communication between VB programs simple via variables that are located in shared memory. A VB program can use any number of beWise Variables simultaneously, limited only by the version of the Edelwise product you have.
visual basic vb inter process communication real-time task communication

beWISE - Edelwise Professional Variables 

This product goes beyond simple VB inter-task communication. It allows huge amounts of data being interchanged between VB applications in near real-time. A VB sample program shipped with the product demonstrates these features.
visual basic vb task-to-task communication inter-task shared variables