Winmail.dat help RT 3.8.7

We’re having this issue where some e-mails coming into the helpdesk are not
including their original attachments. Instead the ticket is including a
winmail.dat file.

I found this thread sent to the list which suggests some options, but I
wanted to know if anyone has come up with any sort of walkthrough on how to
implement them. Specifically, using a perl TNEF module to covert them
before they go into the RT system?

http://www.gossamer-threads.com/lists/rt/users/92786

Thanks,
Juan