Under windows this can mean a very rare change of behavior. If you are using
NTFS filesystem and making use of meta streams in your application this does
- no longer work for a file with the name 'data' accessed without any path. IF
+ no longer work for a file with the name 'data:' accessed without any path. If
you need to do so you have to prefix the filename with the "file:" protocol.
For the functionality itself look here http://www.faqs.org/rfcs/rfc2397.html.