I am making some changes for Excel 2007 compatibility to an old addin that
has been around for several years. I am running into a problem where Excel
2007 does not seem to be able to open References (in my case, to my addin)
that were previously saved for a Workbook.

For instance... create a blank workbook and a blank addin. Set a reference
within the workbook to that addin. To do this, in the IDE go to
ToolsReferences and locate the addin and check it off. You will see in the
Workbook that a References folder is created with that reference in it. If
you save the workbook and reopen it, the reference is missing. Or at least
this is happening for me...

Anyone else see this behavior and could give me advise on it?