Easy:
1. make a copy of the file, in docx format.
2. change the file extension to .zip
3. open the zip archive
4. extract the images to wherever you want them.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Admirably devious! unfortunately, the word/media file contains all the bitmaps (jpg and png), but where the Visio ghosts were it just delivers 2k emf files. If I paste these into a new .docx, I get just a frame :-{

Thanks anyway – already worth asking just for that trick to export pasted graphics.