Microsoft KB Archive/98417

= Heuristics Don't Disable MS-DOS Workstation Write-Behind =

Article ID: 98417

Article Last Modified on 10/31/2006



This article was previously published under Q98417



SUMMARY
There is no effective way to disable MS-DOS workstation write-behind using heuristics.


 * Heuristic 0 sets the write-through bit on write SMBs telling the server not to return until the data is written, but does not disable the redir write-behind.
 * Heuristic 1 applies only to write&X when X is submitted by the user application (as in CLOSE).
 * Heuristic 4 does not, as documented, apply to writes: only to READs.
 * Heuristic 10 applies only to FLUSH--COMMIT: not writes.

New heuristic (16) in LAN Manager 2.1a allows you to disable write-behind, but only on files opened in compatible mode, not in deny-none mode.

Additional query words: 2.10 2.1 2.10a 2.1a 2.20 2.2

Keywords: KB98417

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