CadStd is a 2D CAD (drafting) program. To install execute cadst203.exe and installshield will guide you through the rest of the installation. CadStd V2.03 is freely distributable. To contact the author (John Apperson) please send you e-mail to apperson@cadstd.com. For the latest information about CadStd see www.cadstd.com. Enjoy, John Apperson