wine users - Feb 2009 - How to stop creation of :Zone.Identifier files?

I'm using Firefox 3.1 nightlies in Wine as my usual browser.
Downloading files always causes the creation of another file of the
same name with ":Zone.Identifier" on it. This is another stream in
NTFS, but of course in ext3 it can only be expressed as another file.
All it contains is a note on which IE security zone the file was
downloaded from.

(Precis: http://filext.com/file-extension/IDENTIFIER )

These files are annoying and useless. Is there any simple way to stop
them being generated?


- d.