I have a simple BAT file setup so that it's triggered when a file is uploaded to an FTP account, as an executable event.
It works fine going through the website interface. It works fine connecting with an FTP Client software. But it is not triggered if I upload a file through Windows Explorer / File Manager.
Why? It's still an FTP connection, it uses an FTP URL with embedded username and password ... it's just a different software doing it.