I forwarded a bunch of hotmail using Windows Live Desktop, not paying much
attention and just dragging them into a new message.

When I received the huge message I could not drag them out as expected. When
ever I dropped them into the inbox I got a new message with the dragged
items as attachments.

Turns out that, for what ever reason, two of the messages had _eml as the
extension. Since Windows Mail did not understand that as email, it refused
to drop the whole set into the inbox creating a new message instead.

I'm not sure what should have happened, BUT since this was completely
unexpected and unwanted behavior, a message explaining what was going on
would have been nice.

When i left those two attachments out of the drag and drop, everything
worked as expeced.
When i dragged those two items to the desktop and corrected the extention.
they draged into the Inbox just fine.

Regards,
Al Christoph