Between opening and saving, use the Convert method
documented at http://msdn2.microsoft.com/en-us/library/bb243727.aspx. This
is the same as opening the Office button menu and clicking the Convert item
(which is visible only if the document or template is in compatibility
I don't have Word 2007 handy here to check, but I suspect you might get an
error from calling Convert for a document/template that was not in
compatibility mode. I couldn't find any property of the Document object that
would tell you whether the current document is in that mode, but an On Error
statement might catch such an error.
Microsoft Word MVP FAQ: http://word.mvps.org
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