Just what I needed
The download from NovEdge was an old version and the eval key immediately said it was expired; I got the latest version with a working key from the publisher. My company needed a way to translate AutoCAD drawings with ACIS solids, that had been exported to ACIS, to Step, and also the reverse process. This tool does a good job. The others that I tried had shortcomings like converting all the smooth solids to triangles which doesn't look good at all. My only remaining problem was that the AutoCAD colors were not converted to ACIS colors. I think this is a limitation of ACIS not being able to share custom attributes between different applications.