You can use the _INCLUDE system variable to set the default include file for all user defined classes, forms and form sets.

just issue ;

_include = 'myincludefile.h' or
_inclulde = getfile('h')

>I have created an include file that I want to use in all the classes in my vcx.
>My question is where do I #include it? Do I have to #include it in every method or can I just put it in one place that will be seen by the entire library?