Code:
FIND wordt niet herkend als een interne
of externe opdracht, programma of batchbestand.
Some time ago a user reported the same problem. I proposed a possible solution then, but the user did not respond in any way. So I do not know whether it worked. And I cannot remember the FW version. So one would have to search for it.
Edit: If you like extract the file 3.19.5613_TEST.bat from the archive and try it.