Harry Whitfield
Planimeter II
FreePlanimeter II: Accurate On-Screen Area Measurement Widget
WindowsPixel Scale
FreePixel Scale Delivers Versatile Desktop Rulings and Area Measurement
WindowsDMXdeCoder
FreeEffortless DMX512 Channel Conversion Widget
WindowsSunrise Calculator
FreeDesktop Calculator for Sun and Moon Times
WindowsPlanimeter
FreeMeasure Areas of Closed Curves Accurately
WindowsNetCalc - an RF Impedance Calculator
FreeComprehensive RF Impedance Calculation Tool
WindowsDrawDemo
FreeInteractive Drawing Screensaver for Windows
WindowsDMXconverter
FreeDMXconverter: Simplify Your DMX Channel Calculations
Windows