Article ID: 903146
Article Last Modified on 10/25/2007
APPLIES TO
- Microsoft Exchange Server 2003 Standard Edition
- Microsoft Exchange Server 2003 Enterprise Edition
SYMPTOMS
When Outlook Web Access users try to download .xfd file attachments in Microsoft Exchange Server 2003, the downloaded file is empty. Files that have .xfd extensions are secured forms data that is stored in an XML format.
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.
To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:
Prerequisites
Because of file dependencies, you must have Microsoft Exchange Server 2003 Service Pack 1 (SP1) installed to apply this hotfix.
Restart requirement
The Microsoft Exchange Information Store service and any dependent services are automatically restarted when you apply this hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Mdbmsg.dll | 6.5.7233.49 | 3,270,144 | 17-Sep-2005 | 01:51 | x86 |
| Redir.asp | Not applicable | 3,304 | 04-Jun-2005 | 01:56 | Not applicable |
| Store.exe | 6.5.7233.49 | 5,182,976 | 17-Sep-2005 | 02:26 | x86 |
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
When users access a file though Outlook Web Access, the file name extension is verified. If the extension is a known HTML or XML extension, the content is sent to the client. However, if the extension is an XML file that has an unknown file name extension such as .xfd, the content is not sent to the client. After this hotfix is installed, you can configure a list of additional file name extensions that are allowed through the following registry value:
Location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem\InternetContent
Value: AttachExtensionAllowed
Type: STRING
Note The format for additional file name extensions is as follows: .xxx. This is a placeholder for the extension including the period (".") that comes before the extension. The following are examples of the format: .xfd;.myext1;.myext2
REFERENCES
For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
817903 New naming schema for Exchange Server software update packages
Keywords: kbqfe kbfix kbbug kbexchange2003presp2fix kbpubtypekc KB903146
