Microsoft is going to replace in the future Windows the old file system -NTFS (New Technology File System)- by a new one. The new file system will replace the NTFS which was used for first time on Windows NT. It will organise better the powerful cut into pieces files than the present file systems (FAT16, FAT32 and NTFS).
The first edition of this new file system, maybe, if the Microsoft's team make it on time, it will be with the next Windows XP (Longhorn). The Lonfhorn's beta will send to the beta-testers on 2003.
According to Steve Ballmer, a guy on Microsoft, the development of the new file system, hasn't started yet. Also, the applications should be adapted in which way, to work its advantages, because of this new versions of Office and Outlook will be realesed.