>Thanks for your response.
>
>I didn't make my question clear. I'm not really good with "include" files.
>
>The variable that is not being found (cnErr_CANNOT_FIND_DLL_ENTRY) is defined in the include file SFErrors.h. Nowhere up the calling chain of programs does the cstr "sferrors" appear. I'm assuming that it should appear someplace up the calling chain in an include statement, like so: "#include SFErrors.h".
>
>Is this not correct?
>
>Thanks,
>Dick

In principle, yes, but please note that it can also be called indirectly. For instance, I have several include files - and might want to add an additional include file at any moment.

To ease maintenance, I have a global include file - let's call it MainInclude.h - with contents similar to the following:

#include PrinterConstants.h
#include UserTexts.h
#include SFErrors.h
...

All my other files now include a single include statement:

#include MainInclude.h

Now, I can add an additional include file (or delete it) in one single place - namely, in MainInclude.h.

Also, in forms and classes, include files are specified with the menu command "Form | Include" or "Class | Include" - no code you can see in the code editor.

HTH, Hilmar.