CAUSE
This behavior occurs if you have installed the Outlook E-mail Security
Update. The Outlook E-mail Security Update provides additional levels of
protection against malicious e-mail messages. The update changes the way
that Outlook handles attachments and the way that Outlook can be controlled
programmatically.
For additional information about this update, please see one of the
following articles in the Microsoft Knowledge Base, depending on which
version of Outlook you have:
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