Editting an exe

This is driving me nuts, so hopefully the gurus can help. I'm working
on a registration system for my product. One of the checks is that in
the program there is:

CREATE foo 0 ,

Now, later on in the code is a check function:

: is-registered ( -- flag ) foo @ 0<> ;

Of course it is more complicated than this, but you get the idea. Now,
on my web server, I directly edit the final EXE file and replace the 0
with a different value that is specific to the end-user. I'm finding
the location to put it with a hex editor, searching on "foo" and
moving 12 bytes downstream of the name (where there is 4 00 bytes).

However, when executed foo @ still returns 0. I assume that I'm just
writing the constant into the wrong memory location, but what worries
me is that perhaps SF is doing something I'm not expecting and that I
can't do what I want.

Thanks for any suggestions.

--
Best regards,
 Jeff                          mailto:jma_at_mfire.com
----------------------------------------------------------------------
sftalk_at_forth.com      The SwiftForth programming discussion email list
To unsubscribe, send subject "unsubscribe" to sftalk-request_at_forth.com
For list command help, send subject "help" to sftalk-request_at_forth.com
Message archives are located at http://www.forth.com/archive/sftalk
----------------------------------------------------------------------
This list is a forum for SwiftForth users.  For product support and bug
reports, please send email to support_at_forth.com
----------------------------------------------------------------------