A PowerPoint 2007 presentation that is opened from an attachment in Outlook Web Access cannot be saved by using its default file name

Consider the following scenario. You use Microsoft Office Outlook Web Access to connect to a mailbox that is located on a Microsoft Exchange Server 2003 server. You receive an e-mail message that contains a Microsoft Office PowerPoint 2007 presentation as an attachment. When you click the attachment, the presentation opens as expected in PowerPoint 2007. However, when you try to save the presentation by using its default file name, the presentation is not saved.

This problem occurs because ?attach=1 is appended to the attachment's file name when the attachment is opened from the e-mail message in OWA.

How to obtain the hotfix

This issue is fixed in the PowerPoint 2007 Hotfix Package that is dated June 24, 2007. For more information, click the following article number to view the article in the Microsoft Knowledge Base: Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To enable this hotfix, follow these steps:

1. Exit PowerPoint 2007.
2. Start Registry Editor.
   • In Windows Vista, click Start
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     , type regedit in the Start Search box, and then press ENTER.
     
     
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     If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.
   • In Windows XP, click Start, click Run, type regedit, and then click OK.
3. Locate and then click to select the following registry key:
   HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\PowerPoint\Options
4. After you select the key that is specified in step 3, point to New on the Edit menu, and then click DWORD Value.
5. Type SanitizeFilename, and then press ENTER.
6. Right-click SanitizeFilename, and then click Modify.
7. In the Value data box, type 1, and then click OK.
8. On the File menu, click Exit to close Registry Editor.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.