Do you also hate WINMAIL.DAT sent to you by people with Outlook?
Found WMDecode, that extracts the attachments from a WINMAIL.DAT file. Quite handy! Too bad Outlook doesn’t in full use the well known MIME standards.
You might want to take a look at Julian’s nice little Java agent, that does the trick too! It depends on JTNEF, that can be downloaded freely.
There is an online tool that converts WINMAIL.DAT files to normal files.
I’ve created a Domino database that can be used to decode/extract WINMAIL.DAT files online, if you prefer that. You might also want to use my online extractor.