DataFlex is available for Microsoft Windows only. DataFlex is a GUI development language in a style comparable with Visual Basic, Delphi and C++. From version 4 (1996) up until version 17.1 (2015), the product was labeled Visual DataFlex. DataFlex WebApp Server Available for Microsoft IIS only, the DataFlex WebApp Server can be used to develop thin client applications such as browser-based applications (both full class browsers such as Google Chrome, Internet Explorer, Mozilla Firefox and Opera, as well as WAP browsers). Developers can also create Web Service client and server applications. The server has built-in load balancing capabilities which also assist with High Availability, this does, however, require an SPLF license. Web Framework DataFlex includes a web framework for writing web and mobile applications. Character mode DataFlex The latest iteration of the original character mode application (3.2) is available as a Console Mode application for MS-DOS, Microsoft Windows and Unix variants (notably Linux). External links Data Access Worldwide website DataFlex Learning database (online resource for learning about building applications with DataFlex) VDF-GUIdance (independent resource for users of the DataFlex programming language) References Fourth-generation programming languages Object-oriented programming Programming languages Cross-platform software Web frameworks Object-oriented programming languages High-level programming languages