It's been a long time, but my impression was that QuickBASIC had an interpreter and the ability to compile. Then later on, Microsoft bundled a more limited version called QBasic with later versions of MS DOS which lacked the compiler.

But all of them (QBasic, QuickBASIC, Microsoft PDS, and even Visual Basic for DOS which almost nobody remembers sadly) had the editor, interpretative execution, and built-in help.