The information in this article applies to:
SYMPTOMS
When you are using the Microsoft Mail client or the Microsoft Exchange
Client connected to a Microsoft Mail postoffice, file attachments included
in messages from Internet users contain blank icons. This is true even for
icons that are associated with programs on the local computer. The document
does open correctly when it is clicked, if an associated program exists for
the attachment.
CAUSEMicrosoft Mail clients display icon images according to the following algorithms: Winmail.dat File Does Not ExistIf an e-mail message has an attachment, and no Winmail.dat file, the mail client will display an icon for the file if an association for the file extension has been established. The Winmail.dat file is a special file created by Microsoft Mail clients that contains MAPI property information, rich-text formatting, icon images, and other non-text related items.Winmail.dat File Does ExistIf an e-mail message has an attachment and a Winmail.dat file, the mail client will display the icon image present in the Winmail.dat file. The Winmail.dat file always contains an icon image for each attachment.When mail from the Internet Mail Connector (IMC) is passed to the Microsoft Mail Connector interchange (MSMI), the MSMI always projects a Winmail.dat file for any message that contains an attachment. Because the original message received by the MSMI may not contain an icon image (if it originated from a client other than Microsoft Mail), the MSMI inserts a blank icon image into the Winmail.dat file. Because the Microsoft Mail client sees a Winmail.dat file (created by the MSMI), it expects an icon image to be present. WORKAROUNDUse either of the following methods: Method 1: Migrate UsersMigrate users to the Microsoft Exchange Client using Microsoft Exchange Server as their message store. In this standard configuration, Microsoft Exchange clients will display an icon if present from the sender. If no icon is present, the client will display an icon associated with the file based on its associations.Method 2: Use the Fix DescribedThe Status section of this article describes a fix that is available from Microsoft Technical Support.STATUSMicrosoft has confirmed this to be a problem in Microsoft Exchange versions 4.0 and 5.0. This problem was corrected in the latest Microsoft Exchange Server 4.0 and 5.0 U.S. Service Packs. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K MORE INFORMATION
To operate, the fix requires that the Microsoft Exchange Server computer
that is running the Microsoft Mail Connector interchange (MSMI) must be
running Microsoft Windows NT 4.0. In addition, the fix works by allowing
the MSMI to provide an icon image for documents (instead of using a blank
icon image). For the fix to work, the applications for the documents that
are received as blank icons must be installed on the Microsoft Exchange
Server computer with the fix. (That is, you must install Microsoft Word for
Windows on the Microsoft Exchange server, if .doc files are received with
blank icons.)
If this registry entry is not present, the default value is FALSE or 0. In this case, the MSMI will use the default icon for attachments in a message that do not already have an icon image. This is normal behavior of the MSMI. For additional information about Winmail.dat, please see the following article in the Microsoft Knowledge Base: Q136204 XCLN: Sending Messages in Rich-Text Format
Keywords : kbbug4.00 kbbug5.00 kbfix4.00.sp4 XCON kbfix5.00.sp1 |
Last Reviewed: April 29, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |