>When I build and exe file, does it contain the entire vcx file?
>Or does it just contain those classes that are used in the app?
>
>Assuming that the entire file is included in the exe.
>Is there any way to exclude the unused classes?
>
>TIA

Nope it's an all or nothing when it comes to the .VCX. Have you opened your VCX in the class browser and done a "Clean up class code"? That will make it smaller if it needs to.