Drag and drop a file from a webpage into Outlook

Drag and drop a file from a webpage into Outlook

In Gmail, an email attachment can be downloaded by dragging the item from
the webpage into a folder. A solution for achieving this is described in
Case Study: Drag and Drop Download in Chrome on HTML5Rocks.
I'd like to drag an item from a web page and use it as an attachment in an
email. I've tried dragging items from Gmail into Outlook, but it won't
catch the attachment.
Is it possible to drag files from a web page into a drop area in an
application normally capable of catching files? If not, are there any
workarounds making it possible to create a more sexy user experience than
dragging the file to a folder and then drag it into an email application?