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Article ID: 952770 - Last Review: May 29, 2008 - Revision: 1.0
Error message when you try to open a 2007 Office system file attachment in Outlook Web Access: "To open this attachment, you must save it to your disk"
SYMPTOMS
When you try to open a 2007 Microsoft Office system file
attachment by using Microsoft Office Outlook Web Access, you may receive the
following error message:
To open this attachment, you must
save it to your disk, right-click the link, and then click Save.
This
problem occurs if the following conditions are true:
- The e-mail message is sent by using Outlook 2003 or by using Outlook
2007.
- You read the e-mail message in Outlook Web Access.
Note This problem does not occur if the e-mail is sent by using Outlook
Express or by using Outlook Web Access.
CAUSE
This problem occurs because of the Exchange Server 2003
component that is used to convert the Outlook MAPI e-mail message to a MIME e-mail message type that Outlook Web Access can read. Because this component cannot
recognize the new 2007 Office system file formats, you experience the problem
that is described in the "Symptoms" section.
RESOLUTION
To resolve this problem, add the 2007 Office system content
types to Exchange so that the conversion process can recognize these content
types. A content type is a string that has a file name extension associated
with it. To add the string and the associated file name extension, use Exchange
System Manager. To do this, follow these steps:
- Open Exchange System Manager.
- Expand Global Setting Branch.
- Right-click Internet Message Formats, and
then click Properties. This operation displays the current
list of known MIME content types.
- Examine the list, and confirm that the 2007 Office system
file name extensions are not in the list.
- Click
Add, and
then copy and paste the appropriate
MIME type from
the following table in the text box that is provided.
Additionally, type
the appropriate
file name extension that
corresponds to the MIME type in the
Extension check box.
Collapse this tableExpand this table
| MIME type | File name extension |
|---|
| application/vnd.openxmlformats-officedocument.presentationml.presentation | pptx |
| application/vnd.openxmlformats-officedocument.presentationml.slide | sldx |
| application/vnd.openxmlformats-officedocument.presentationml.slideshow | ppsx |
| application/vnd.openxmlformats-officedocument.presentationml.template | potx |
| application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | xlsx |
| application/vnd.openxmlformats-officedocument.spreadsheetml.template | xltx |
| application/vnd.openxmlformats-officedocument.wordprocessingml.document | docx |
| application/vnd.openxmlformats-officedocument.wordprocessingml.template | dotx |
- Click OK.
- Restart the Microsoft Exchange Information Store Service to
make sure that the store obtains the new list.
- Restart Outlook, and send a new test e-mail message that
includes a 2007 Office system file attachment. For comparison, send an e-mail
message that contains the same attachment by using Outlook Web
Access.
STATUS
Microsoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
APPLIES TO
- Microsoft Exchange Server 2003 Enterprise Edition
- Microsoft Exchange Server 2003 Standard Edition
| kbtshoot kbexpertiseinter kbprb KB952770 |
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