The “Visual” in the name came from a VB-like form designer. Developers could:
Visual Prolog 5.2 competed with:
Although Visual Prolog is no longer as widely used as it once was, there are still some dedicated communities and forums where developers share knowledge, ask questions, and showcase their projects. However, I couldn't find any recent or specific discussions about Visual Prolog 5.2. visual prolog 5.2
Example: