Culled from SANS Newsbites:

--6 April 2001 Outlook 2002 Will Restrict Attachments

In an effort to protect users from viruses, Outlook 2002 will reject more than 30 types of file attachments, including .exe, .bat, and .vbs files, CD images and screen-savers. The new restrictions will make it more difficult for people to share information as the feature is very difficult to disable. Security expert Richard Smith supports Microsoft's endeavor and suggests people compress files they wish to send to others; other experts believe Microsoft should fix its essential security problems instead of treating the symptoms.

http://news.cnet.com/news/0-1003-200-5529034.html?tag=prntfr