The simulator is a 64-bit application built with modern C++ and a custom rendering engine to efficiently utilize the capabilities of today's GPUs. This engine was developed with the graphical requirements of the simulator in mind from the start, ensuring that much of the exact visual behavior of the 4000 could be faithfully recreated.

The binary is designed to be as minimalist and portable as possible, with a total of three files required to run (simulator binary itself, its resource file, and the FMOD sound library). The simulator does not write to your system registry (Windows) or other global configuration stores, rather it saves its settings in a locale file and profile file. There's no worries about registry bloat or running cumbersome installation/uninstallation programs, nor nightmarish arcane registry search expeditions to locate where your configuration settings reside.

The forecasts displayed are generated entirely from the National Weather Service's digital forecast grids, which allows for a high degree of resolution based on longitude and latitude, as well as the ability to recreate how the 4000 handled different forecast conditions.