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Sincerely Patti Welsh

Hi Chris.
Enjoy watching your show and perhaps you have an answer to an ongoing question I have.
I get email from my daughter and also from a friend that come 99% of the time with an attachment named winmail.dat. Sometimes the text part of the message is in the email and sometimes not.
I have not been able to find a program that opens the attached files (winmail.dat) to anything except a jumble of ASCII text. My daughter uses Outlook and her mail goes through a company (Worldnet) server – she thinks maybe the company server scrubs the files, but other people receive them with no problem.
It doesn't seem to matter if she sends them to my AOL address, my Earthlink address (receibved either via Eudora, Outlook Express, or Netmail), through Netscape or IE. I don't know what program the other person uses (they are very novice and probably don't even know themselves – tho I suspect they too use Outlook. Some of their attachments come as *.elm files.
Thus far I have not been able to view even one of these *.dat files. Do you have any clues? Why this happens or how to open the files?

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Are you looking for an answer to this?
Try this MSKB article:
OL2000: (IMO) Winmail.dat Attachments Included in Messages [Q196784]
Or this one:
OL2000: (CW) Winmail.dat Attachments Included in Messages [Q197064]
…Or, basically search the entire KB for the term winmail.dat in the subject, and one of the articles that comes up will likely pertain to their particular situation.
Damn, haven't done the desktop app support thing in a while. Got any users with a nasty mail or web or maybe even a new clustering server issue?

I actually have run into this twice. One of the times it was my works exchange server. We were migrating and one of our users tried to set a rule but goofed it and didn't remove it properly so whenever he tried to forward a message with a new rule then it would append the webmail.dat file. We ended up having to backup his exchange account and remove his mailbox from the server and recreate it. Another time I ran into this it turned out that the recieving server wasn't set up to interpret Exchange messages for their web client so It would drop any attachment to a webmail.dat file. Either way though, as far as I have found there is not 3rd party interpreter. Hope this helps

I used to have this problem when I had a feedback form on my portfolio site.
Since the form didn't use CGI or PERL to send the messages, IE compacted the message into a *.dat file, and I would have to manually decode the file.
Ask them if they're using a web-send email client.

Here is an answer for mac users: http://www.joshjacob.com/macdev/tnef/
Here is an answer for PC users:
See the section ” WMDecode.zip (23K) For Windows 95, 98, NT, 2000, XP etc Only” at http://www.biblet.freeserve.co.uk/

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