This project started out because I used the windows scientific calculator quite frequently, but it did not do other things that I use on occasion - i.e. conversions, area & volume calculations, and loan calculations. I wanted one program that would do all of these things with the press of a button or two. The Encalc project began! Some of EnCalc's Features include...Completely portable - No installation needed, Small (under 500KB) and can run from a hard drive, USB Flash drives, etc., Compatable with Win98, 2000, 2003, XP, & Vista, Use trial version for as long as you like, Very easy to use, Decimal, Binary, Hexadecimal, and Octal number systems, Printable & savable calculator tape, Loan Calculator Area & Volume Calculator in metric or standard with ability to mix all units, Over 60 unit conversions in categories Temperature, Length, Volume, Weight, Area, Speed, & Time, Floating Point, Fixed & Auto Decimal Tax Button, Much more!