Have been developing for Windows since 1991. Started with Turbo Pascal for Windows using OWL (Object Windows Library), graduated to Borland C++ for Windows using OWL, and then Visual C++/MFC since 1995.

Have shipped code used the world over in C++, C#, Java, VBA, and Python.

Published the WorldCom MFC library in 1996 which had one of the first freely available grid controls for MFC. It was featured in Microsoft Systems Journal (Feb 1998) and was selected one of the best free downloads from the web in PC Computing magazine (June 1997). It was re-engineered/re-written by Chris Maunder and became one of the foundations of his excellent codeproject.com website.

Developed Statistica from 1996 to Nov 2020 which made the Gartner Leader's Quadrant for Data Science and Machine Learning. Statistica was used to develop and manufacture COVID vaccines.