Ever need to export a newer AutoCAD file to a previous version? You will probably get a dialog box stating that certain objects will not show up or are not supported in the previous version and that you need to enable proxy graphics. If you try like I have to explode the proxy graphics or the AutoCAD objects, you will find that they do not explode.
Well I found across this solution today.
In the command window just type in AECTOACAD and this will explode the proxy objects and save the file as a new name. Then open the file you just saved and then resave it to the previous version say AutoCAD 2004 and you will not get the dialog warning box.
