Microsoft KB Archive/153949

= CSNW Does Not Support MS-DOS Name Space Correctly =

Article ID: 153949

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q153949





SYMPTOMS
When a connection is made to a Novell NetWare Server, Client Services for NetWare (CSNW) checks whether the volume supports OS/2 name space. If it does, CSNW enables long file name support on that connection. However CSNW only provides long file names for that connection. An application that needs MS-DOS name space will fail.



CAUSE
CSNW does not support MS-DOS name space if long file name support is enabled on a connection.



RESOLUTION
To correct this problem, first apply the updated Nwrdr.sys mentioned below and then do the following:

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.


 * 1) Run the Registry Editor (REGEDT32.EXE).
 * 2) From the HKEY_LOCAL_MACHINE subtree, go to the following key:

\System\CurrentControlSet\Services\NWRDR\parameters
 * 1) From the Edit menu, choose Add Value.
 * 2) Add the following:

Value Name: LongNameFlags

Data Type: REG_DWORD

Data: 0x1 (Hex)

LongNameFlags enable or disable the LFN support on NWCS Default is Enabled (0x0)



STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.51. This problem was corrected in the latest Windows NT 3.51 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: sp3 kbfix kbbug

Keywords: kbbug kbfix KB153949

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