Microsoft KB Archive/159447

= Applications Testing for Directory Existence Fail =

Article ID: 159447

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q159447



SYMPTOMS
An application does a test to see if a directory exists on the Windows NT 4.0 file server, and an MS-DOS error 3 "Path Not Found" is returned. This same application worked fine in Windows NT 3.51.



CAUSE
This error only occurs when the server evaluates the server message block (SMB) command 81 (Search Directory) sent across the wire and only when search attributes of 1016 are used. Because search attributes can only occupy the first 8 bits of the word, the bits beyond 8 were previously ignored. But in Windows NT 4.0, these bits were not ignored, causing the server to return an error to the client.



RESOLUTION
The code has been changed to now ignore bits that are not relevant. Install the updated file.



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 4.0.This problem was corrected in the latest Windows NT 4.0 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Additional query words: prodnt

Keywords: kbnetwork KB159447

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