I am trying to accomplish the same thing. We have drawings with shaded views on them and our vendors and distributors need access to these Pro/E drawings but they don't have Pro/E. One tool we use is LinkAccess by Fishbowl Solutions to convert the Pro/E drawing to either dwg or dxf and for some reason the shaded views don't get exported from Pro/E, they just don't show up in the dxf when I try to open the exported dxf within Pro/E.
We have 1 distributor that uses Draftsight and when they open an exported dwg file, there's a place holder for a .png file where the shaded view should be and the error in Draftsight says, "File not found - blahblahblah.png"
If anyone could help it would be appreciated.