I'm affraid about other VFP developer creates a EXE and then, he is receiving this parameters too.... so, he can intercept it and do anything that he wants...
I think the only way is create a external file that checks if the file is the expected or not. Then, the MAIN.EXE could check if the CUSTOM is the same of the "certificate file"...
:-)
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Rodolfo Duarte
