Licenses:

Mozilla

Parts of Scientific WorkPlace, Scientific Word, and Scientific Notebook are based on the Mozilla project, and are used under the Mozilla License 2.0.

TeX

The portion of TeX redistributed from TeXLive are free and primarily open source. MacKichan Software makes no copyright claim for any portion of the TeXLive distribution.

Other

The wmf2epsc.exe program that converts Windows WMF and EMF graphics files to EPS is licensed from Wolfgang Schulter.

Other programs such as convert, sam2p, Inkscape are freely availabe and open-sourced with the Gnu license.