Gerry, all my bugs are found into my application.

If a my message does not interest to you, ignores it.

On this specific:

* On VFP you can define a binary stream into the code ?
* like
x = 0hffC50910cd....

AFAIK, No.

Then you can define it with a string,
obviously CHR(0),CHR(10),CHR(13) is not allowed,
but CHR(26) ( EOF() tag ) it is not immediate
because VFP have a option for not put EOF(),
then it can ignore EOF().

- that an operation on command works,
while in programs it not works,
and into EXECSCRIP() not works

Then a question is :
EXECSCRIPT() built a temporary file for exec the script ?