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Starting in Feature Pack 2007, Windows XP Embedded provides two write filters: FBWF, which operates at the file level, and Enhanced Write Filter (EWF), which operates at the sector level. In most cases, FBWF is the better choice. However, only EWF fully supports NTFS. The following NTFS features are supported in EWF but not in FBWF:
- File locking and unlocking
- File ID in NTFS
- Reparse points
- Quota
- Hard links
- Opportunistic lock
- File encryption
In addition, only EWF may be used with Hibernate Once Resume Many (HORM). HORM is not available when FBWF is used.
FBWF does not provide the following EWF functions:
- Support for multiple overlays
- Support for disk overlays
- Live commit and disable
See Also
Enhanced Write Filter | Hibernation and EWF
Last updated on Wednesday, October 18, 2006
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