Here is the blunt truth: It is copyrighted commercial software. Bio-Rad Laboratories still owns the rights, and the product eventually evolved into KnowItAll (a spectroscopy suite). However, because version 6.0 is abandonware (no longer officially sold or supported), many users seek free downloads.
Uses OLE (Object Linking and Embedding) for seamless editing within Microsoft Word or PowerPoint. chemwindow 6.0 free download