>I'm upgrading a FoxPro for Windows Version 2.6a project to Visual Foxpro 9 sp2.
>Cfw16.dll is an API library in the project.
>
>When I build the project in VFP 9 sp2, I get c:\fpw\cfw16.fll is invalid.
>
>How do I get the library to work in VFP 9 sp2? or do I need to use Cfw32.fll? or something else?

It's 16-bit library and it'll not work in 32-bit VFP9. You can try Cfw32.fll if you've one.
Do you know what this library is/does?