Here are a number of plotters on the Windows platform. Not reviewed.Win
GraphCalc is a basic graphing calculator. Plots 2D and 3Ds. Author are Brendan Fields and Mike Arrison. It is a free software. http://www.graphcalc.com/.
MathGV: http://www.mathgv.com/ 3D Grapher: http://www.romanlab.com/ Graphmatica: http://www8.pair.com/ksoft/ by Keith Hertzer of kSoft, inc. Graphis: http://www.kylebank.com/. By Robert Fairlie of Kylebank Software. David Parker's DPGraph: http://www.dpgraph.com/ Advanced Grapher: http://www.serpik.com/ MathGrapher: http://www.mathgrapher.com/ (commercial) Graph Easy: http://www.grapheeasy.com/
Here's a Java one: Plane Graphic Calculator: http://www.accesscom.com/~lillge/pgc/pgc-gallery.shtml