>Hi,
>
>I want to remove a deprecated class library (.vcx) from my project. I checked that any of the classes in this vcx are not used in any other classes/prgs (using GoFish4).
>Then I remove this vcx from the project.
>Then I rebuild/recompile the project into .exe file. No error.
>I close VFP 9 and open it again and this vcx is back in the project.
>
>Where else do I need to remove it from?

Maybe the class library has been added, either by Set Classlib or by dropping it on a form. Try to search for the clsslib itself using GoFish4.