Alphacam is CAM software which runs on Windows XP and Windows Vista for operating CNC Machines. The bulk of the software is written by one programmer, and has been since it's conception as an MS-DOS application. Additional programmers now write modules such as [Nesting], Solid Model Feature Extraction, and Machine Simulation (an animated representation of the CNC Machine at work). It is written by Licom Sytems Ltd who are now a part of Planit Holdings Ltd.