Virtual Grid creates an infrastructure for distributing docking.
Molegro Virtual Grid creates an infrastructure for distributing docking runs on multiple machines.
Virtual Grid support is built into Molegro Virtual Docker: for instance, to dock a library of compounds against a receptor, simply setup a compound data source, and select 'start job on Virtual Grid' in the Docking Wizard.
Molegro Virtual Grid is multi-core aware and can be installed on any platform: Linux, Windows, and Mac. The machines in the grid do not need to run the same operating system.