That is — likely a fake/crack bundling malware. Do not run dlmsfx.exe unless you know exactly what it is and trust the source (unlikely). EPUB has no role in installing AutoCAD.
indicates it is a self-extracting file that unpacks the necessary installation data to your local drive before starting the setup. autocad 2016 english win 64bit dlmsfxexeepub
The dlmsfx suffix stood for . Unlike older .exe files that installed directly, this one was a two-stage launcher: That is — likely a fake/crack bundling malware
