>When a messagebox appears -
>
>Is there a way to make a custom icon such as a company logo to replace the standard Stop sign, Question mark, Exclamation point, or Information icon?
>

Not using the native VFP function, which is simply a wrapper on the Win32 API call MessageBox()

>Otherwise, I guess I could make a form that looks like the messagebox and stick a company logo graphic on the form as a workaround. I could make it the same size as a messagebox.
>

There are a couple of classes on UT that work in a similar fashion to the native messagebox, you might want to start with them.