Convert DWG to SHE

MEDUSA4 offers a special CADConvert program that can read all versions of DXF/DWG up to and including AC1021 (AutoCAD 2007/2008) and also offers tools to write DWG in AutoCad 2007 format, so dwg to she conversion should be doable. Unfortunately, there might be some inconsistencies between the original and the resulting import tho, usually caused by special AutoCAD settings under which the file was saved.