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robotnikman • today at 7:00 PM • 1 reply • view on HN

>and I member encountering a spreadsheet that macro-called in a DLL shipped together with the sheet

That sounds absolutely horrifying. I never encountered one of those before thankfully.


Replies

akiselev • today at 7:24 PM

Oh it gets better (not the OP but I think the following is even worse).

That DLL hooks into SCADA and sometimes sends updates to a PLC controlling safety critical equipment. When does it send updates versus just query the controller? No one knows. The guy who wrote it died in an (unrelated) industrial accident involving a runaway forklift after leaving the company. Even so much as debugging it would require shutting down the entire factory and replacing all the crucibles afterwards ($$$).

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