The Frenchman Michel Goux has assembled all tools for a proper installation of GFA-BASIC for Windows 16 Bit (also known as Windows 3.1). All tools like IDE, Compiler, Linker, ExtTool, etc are to be downloaded into one new package. The package also includes tips for running the 16-bits version on more recent OS's like Vista-32 and Windows 7-32.
Unfortunately, it will not run on 64-bit systems? Maybe some have a solution for that?
Go to the Michel's GfaWin16 download page.
You can also check-out my GFA-BASIC 16 page for downloading additional stuff.