>>The standard place is at the top of the file.
>>
>
>This is what I thought. I realize now what my problem is/was. This is a main program (like main.prg). The .H file is in the /INCLUDE folder. And the path to this folder is after the #INCLUDE.. line. Therefore, when I run this project from the VFP IDE I get error on the line where one of the #DEFINE is used. Just to test it, I copied the SET PATH statement right above the #INCLUDE... line and it works. So I guess, when it comes to using this include in the main program I have to have a copy of it in the application folder.
>
>Thank you.

You can place your header files where ever you want.

The trick is to use SET PATH in the IDE.
IOW you need a config.fpw or some other way to run a program at IDE startup to set your path.

I finaly linked *,fpw files to VFP so that a click on a fpw will start

VFP9.exe -t -c%s

the fpw runs a prg, and this will set the environment for the specific project, including SET PATH

Agnes