AkeeSoft WMViewer is a GUI utility to dealing with the WinMail.dat file (TNEF message), it can Extract the winmail.dat, view mail body and save any attachments. It support Windows 9x, Windows 2000, Windows XP, Windows 2003.
WMViewer is eady to use. To use, just open WMViewer.exe, drag/drop a WINMAIL.DAT file onto it to retrieve the mail body and attachments.
Features
We keep getting e-mail attachments in winmail.dat (or ATT00001.dat) files and can't open them. What's going on? Is there a utility that can extract the attachments from these?
When an end user sends mail to the Internet from an Exchange Windows or Outlook client, a file attachment called "winmail.dat" (or ATT00001.dat) may be automatically added to the end of the message if the recipient's client cannot receive messages in Rich Text Format (RTF). The "winmail.dat" file contains Exchange Server RTF information for the message, and may appear to the recipient as a binary file. It is not useful to non-Exchange Server recipients.
The file is a rich text (or MAPI) message that is sent from Outlook to Exchange. When Exchange sends the message to an outside server it writes the MAPI message as a MIME attachment. The unfortunate side effect of this plan is if the Outlook user has someone in their address book as a person who can receive "Rich Text" then the user will receive the TNEF file whether the user uses Outlook or not.
