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In Microsoft Office Outlook 2003, you cannot open Macintosh binary attachments after you install the security update MS08-15. In particular, you cannot open .jpg attachments. However, other kinds of attachments may also be affected.
To resolve this problem, apply the hotfix that is mentioned in Microsoft Knowledge Base article 951678.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
951678 Description of the Office Outlook 2003 hotfix package: April 15, 2008
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.