Issue:
c:\program files\autodesk\autocad raster design 2018\aeciibui57.arx cannot find a dll or other file that it needs.
Unknown command "IINSERT"
Solution:
1. Open AutoCAD - Click on "A" icon - Options
2. On the Files tab, expand Support File Search Path and add the following path:
C:\program files\autodesk\autocad raster design 2018\
C:\program files\autodesk\autocad raster design 2018\help
3. Click Apply. Then click Ok.
4. Exit and relaunch AutoCAD.
More details: https://knowledge.autodesk.com/search...