[Zope] ExternalEditor plugin for MS Project?

I'm wondering if anyone's hacked together an External Editor plugin for Microsoft Project... From looking at the code for the Word, Excel, etc. plugins, it doesn't seem to be too complex. However- my knowledge of MSOffice COM scripting is even more tenuous than my knowledge of Python. As near as I can tell, Project seem to be a bit more of a unique beast than Word/Excel/Powerpoint. all clues appreciated- Larry