Analysis of information sources in references of the Wikipedia article "سازنده رابط کاربری گرافیکی" in Persian language version.
RAD Basic is not the only game in town. Alternatives in varying stages of development include twinBASIC, which also aims to be backward compatible with VB6 and VBA; and FreeBASIC, which implements much of what lurked in Microsoft QuickBASIC (and has a nifty IDE in the form of VisualFBEditor).
