The Causeway class library has been constructed so that there are no dependencies between classes, so you can safely remove any class you are not using in your application.

)cs Class
)erase AC HP TM
)cs #
CPro.Build

There is a sample function (called enum) in the dbx namespace which lists all the classes which you need to build your current collection of dialogue boxes.

)cs Class
ŒEX Classes~#.dbx.enum
Classes
AC EN FM QT TX
)cs
#.CPro.Build

In general, you should reduce the class library to a reasonable working set for each application. This saves on workspace and reduces the number of menu entries shown in the Designer when you add a new object to your form.