>>>I'm still confused. If I set the _include variable to foxpro.h then everything I do in VFP will have access to it?
>>
>>No. It'll be only used by Form and Class Designers when new form/class is created to populate Include for it. It doesn't have any effect on already created forms/classes.
>>
>>> Then if I create a form class (myformclass) I can set file1.h from the menu, then if I create a form (myform) from the form class I can set file2.h from the menu. Myformclass will have access to foxpro.h and file1.h? Myform will have access to foxpro.h, file1.h and file2.h?
>>
>>No. Each class will have access only to the .H file you specified from the menu for it.
>>If you want a form/class to use multiple .H files you can create a wrapper .H file that in turn #INCLUDEs other .H files and use it for the form/class.
>
>Thank you Fabio and Sergey! I finally understand.

You're welcome.