Then I got sidetracked by Delphi, VB, Oracle and what not !!<BR><BR>So, I surmise that I need a sample project that will build to an OCX and interacts with its environment.

BTW, I was using a radio button or option button, because they are mutually exclusive. I couldn't figure out to do that with a checkbox. The user cannot check both yes and no, just one or the other.

The Visual Basic "Button" class lets you create a control on your VB projects that perform an action such as auto-save. VB also includes file classes that help you create functions to save files.