Im not sure about the Foxpro EULA, but my visual studieo EULA spacificly states that I cannot devlope opensourece programs, or programsfor open source platformes. This is part of Microsofts FUD they want you t obelieve that if you have one open source devlopement enviroment or app it forces all of your coed to become open source. This is from the time they where calling Linux a cancer.