Issue with email attachment: winmail.dat

Issue with email attachment: winmail.dat

Hi,
i'm running SD+ 7.0.0 Build 7010 & i would like to solve an issue we've from the begin: opening a request trough email, if there is an attachment (like pdf, doc, bmp), in request is attached like winmail.dat.

Any idea?

Email client is Outlook 2003 via Exchange 2000.

thanks
Cesar