SketchFramework Source [Zip]
SketchFramework is a grab-bag of code extracted from the ShapeShop system. Basically SketchFramework is the "interactive 3D user interface" framework code, but none of the actual ShapeShop functionality. So, if you got this code to compile, you would have a Microst Windows MFC application with some buttons/menus/toolbars, a 3D OpenGL viewport, and a simple objects-with-manipulators setup.
But, currently the package does not build out-of-the-box. To get it to compile, a bunch of stuff needs to be deleted, to get rid of all the references to code not in this packages. I have done this once in the past but can no longer find that version...
This code is released under the Boost 1.0 License, so you can use it for any purpose, commercial or non-commercial.
RMS @ DGP