If you specifically need version 4.9 and cannot find it on the official site, certain software aggregators maintain archives of older versions: Software Informer: This site hosts Ecodial Advance Calculation INT 4.9 and lists it as a free download for Windows [2, 6]. Electrical Engineering Portal (EEP): Download Center
was available for free, provided they registered to receive a license key. Schneider Electric Community
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