Hi,
the correct Message is "The subject is not trusted for the specified action". When googling for this issue you will find lots of questions but no real answers. The registry solution (change registry key "HKEY_LOCAL_MACHINE\Software\Microsoft\Interne t Explorer\ActiveX Compatibility\{3B7C8860-D78F-101B-B9B5-04021C009402}" from "400" to "0" does not seem to work for Office version > 2003 anymore.
The most promising advice: use Microsoft InkEdit instead.
HTH
NP
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Microsoft Terminology Database may help

.