FoxPro was a competitor of dBase, not built on top of it. It was at least mostly source code compatible with dBase III programs though, IIRC. For its day, it

FoxPro was a competitor of dBase, not built on top of it. It was at least mostly source code compatible with dBase III programs though, IIRC. For its day, it actually could produce some of the better looking DOS-based database apps if you actually wrote them as native FoxPro applications and didn't just migrate some old FoxBase or dBase code to it. Microsoft (who purchased the company and its products) deliberately hobbled, and then killed, FoxPro as a product since it didn't fit into their product strategy. I recall reading an interview where it was stated that MSFT believed FoxPro provided too much value vs the licenses (mainly Access or SQL Server) they were trying to sell instead which was part of why they wanted it to disappear.