As it turns out, there were no pushpins on this map at all!
The stops were simply typed into the Find dialog box and
added to a route and the map was saved. I found this to be
rather unusual, so I wrote a COM Addin to solve the problem:
It can be downloaded here:
www.mattysconsulting.com/demos/rt2xl.dll
It doesn't do anything for maps with pushpins.
I hope anyone who needs such a thing will find it useful
Mike Mattys