OnUploadComplete = E:\php\php.exe -f E:\files\addFolder.php [full_path_to_folder]
-->
OnUploadComplete = EXEC E:\php\php.exe -f E:\files\addFolder.php
und dann brauchst nur die arguments tu checken
argv[1] = full\path\plus\filename
argv[2] = CRC.of.filename
argv[3] = virtual/path/plus/filename
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