Math Calculator
To calculate expression, derivative, root, extremum, integral.

R Decode
This program by WorkHorse Games decodes the resistor color bands for you.

Geometry
Calculate geometry figures as spheres, triangles, cones, trapezoids.

Power Sequencer Plus 3
a MIDI sequencer written the old-fashioned way.

Cool Type Master
Cool Type Master is a program for improving typing speed and keyboard accuracy.