This article lists the hotfixes that are currently available for users who have installed the File Services technologies on a Windows Server 2008-based computer or on a Windows Server 2008 R2-based computer. File Services provides technologies that help you manage storage, enable file replication, manage shared folders, ensure fast file searching, and enable access for UNIX client computers. This article also lists the hotfixes that are currently available for users who utilize File Services from Windows Vista-based computers or from Windows 7-based computers.
This article contains lists of Microsoft Knowledge Base articles that describe the currently available fixes. The article is divided into two sections. The first section applies to Windows Server 2008 R2 and to Windows 7, and the second section applies to Windows Server 2008 and to Windows Vista. Each section is divided into subsections for different component drivers: SRV, MRXSMB, and RDBSS. In general, the SRV drivers should be updated on the server or client computer that is hosting the data. The MRXSMB and RDBSS drivers should be updated on the server or client computer that is initiating access to the data. If you are unsure about which component should be updated on which computer, you can update all three component drivers both on the computer that is hosting the data and on the computer that is accessing the data.
Windows Server 2008 R2 and Windows 7
NTFS component
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| Date added | Knowledge Base Article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 11/16/2012 | 2698155
(http://support.microsoft.com/kb/2698155/
)
| An application does not read or access a file correctly in Windows Server 2008 R2, Windows Server 2008, Windows 7, or Windows Vista
| This hotfix contains the most current version of ntfs.sys.
(GDR/LDR) | To apply this hotfix, you must have Windows 7 SP 1 or Windows Server 2008 R2 SP1 installed. Available from Microsoft Update. |
SRV component
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| Date added | Knowledge Base Article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| | | | | |
| 04/10/2013 | 2831013
(http://support.microsoft.com/kb/2831013/
)
| User receives SMB change notifications from a subfolder that the user does not have permission to access in Windows 7 SP1 or Windows Server 2008 R2 SP1 | This hotfix contains the most current versionof srv.sys and srv2.sys. | To apply this hotfix, you must have Windows 7 SP1, or Windows Server 2008 R2 SP1 installed. Available for individual download. |
| 06/08/2012 | 2719594
(http://support.microsoft.com/kb/2719594/
)
| "0x00000050" Stop error in Windows 7 or in Windows Server 2008 R2
| This hotfix contains the most current version of srvnet.sys. | To apply this hotfix, you must have Windows 7, Windows 7 SP1, Windows Server 2008 R2, or Windows Server 2008 R2 SP1 installed. Available for individual download. |
MRXSMB component
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| Date added | Knowledge Base article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 01/25/2013 | 2807716
(http://support.microsoft.com/kb/2807716/
)
| Error message when you try to map a drive to a network share in Windows 7 or Windows Server 2008 R2 | This dual hotfix contains the most current version of mrxsmb20.sys.
| To apply this hotfix, you must have Windows 7 SP1, or Windows Server 2008 R2 SP1 installed. Available for individual download. |
| 12/12/2012 | 2792026
(http://support.microsoft.com/kb/2792026/
)
| Windows 7 SP1-based or Windows Server 2008 R2 SP1-based SMBv2 client computer freezes when the computer is under a heavy load
| This dual hotfix contains the most current version of mrxsmb.sys.
(GDR/LDR) | To apply this hotfix, you must have Windows 7 SP1, orWindows Server 2008 R2 SP1 installed. Available for individual download. |
| 06/28/2012 | 2727324
(http://support.microsoft.com/kb/2727324/
)
| Computer stops responding after you connect to an SMB version 1 server in Windows 7 or in Windows Server 2008 R2 | This hotfix contains the most current version of mrxsmb10.sys. | To apply this hotfix, you must have Windows 7, Windows 7 SP1, Windows Server 2008 R2, or Windows Server 2008 R2 SP1 installed. Available for individual download. |
RDBSS component
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| Date added | Knowledge Base article | Title | Why we recommend
this hotfix | Hotfix type and availability |
|---|
| 03/08/2013 | 2824408
(http://support.microsoft.com/kb/2824408/
)
| Oplock break requests are ignored by a Windows 7-based or Windows Server 2008 R2-based client | This hotfix contains the most current version of rdbss.sys. | To apply this hotfix, you must have Windows 7 SP1 or Windows Server 2008 R2 SP1 installed. Available for individual download. |
Windows Server 2008 and Windows Vista
NTFS component
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| Date added | Knowledge Base Article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 01/03/2013 | 2792165
(http://support.microsoft.com/kb/2792165/
)
| "0x00000024" Stop error when a third-party application unmounts a corrupted storage volume on a Windows Server 2008 SP2-based storage server
| This hotfix contains the most current version of ntfs.sys. | To apply this hotfix, you must have Windows Vista SP 2 Windows Server 2008 SP2 installed. Available from Microsoft Update. |
SRV component
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| Date added | Knowledge Base Article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 04/10/2013 | 2831038
(http://support.microsoft.com/kb/2831038/
)
| "0x0000007E" Stop error when many users connect to shared folders on a Windows Server 2008 SP2-based computer
| This hotfix contains the most current version of srvnet.sys and
srv2.sys. | To apply this hotfix, you must have Windows Vista SP2 or Windows Server 2008 SP2 or later versions installed. Available from Microsoft Update. |
| 02/18/2011 | 2508429
(http://support.microsoft.com/kb/2508429/
)
| MS11-020: Vulnerabilities in SMB Server could allow remote code execution: April 12, 2011
| This security update contains the most current version of srv.sys.
(GDR/LDR) | To apply this security update, you must have Windows Vista SP 1 or later versions or Windows Server 2008 SP1 or later versions installed. Available from Microsoft Update. |
MRXSMB component
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| Date added | Knowledge Base article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 12/21/2012 | 2792795
(http://support.microsoft.com/kb/2792795/
)
| SMB 2.0 client redirector freezes in Windows Vista SP2 and Windows Server 2008 SP2
| This hotfix contains the most current version of mrxsmb.sys and mrxsmb20.sys. | To apply this hotfix, you must have Windows Vista SP 2 or Windows Server 2008 SP 2 installed. Available for individual download. |
| |
| | |
| 07/06/2011 | 2536276
(http://support.microsoft.com/kb/2536276/
)
| MS11-043: Vulnerability in SMB Client could allow remote code execution: June 14, 2011
| This security update contains the most current version of mrxsmb10.sys.
(GDR/LDR) | To apply this security update, you must have Windows Vista SP 1, Windows Server 2008 SP 1 or later versions installed. Available from Microsoft Update. |
RDBSS component
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| Date added | Knowledge Base article | Title | Why we recommend
this hotfix | Hotfix type and availability |
|---|
| 01/13/2012 | 2665803
(http://support.microsoft.com/kb/2665803/
)
| Slow network file transfer if KB 2251177 is installed on a computer that is running Windows Vista or Windows Server 2008 | This hotfix contains the most current version of rdbss.sys for Windows Vista SP 2 and for Windows 2008 SP 2. If you do not have SP 2 deployed, use KB 2254637
(http://support.microsoft.com/kb/2254637/
)
instead. | To apply this hotfix, you must have Windows Vista SP 2 or Windows Server 2008 SP 2 installed. Available for individual download. |
Server 2008 R2 Registry keys that have been introduced with hotfixes or security updates:
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| Date | Knowledge Base article | Registry key | | |
|---|
| 5/15/2009 | 971277
(http://support.microsoft.com/kb/971277/
)
| HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters\Level2Compatibility
|
| 9/06/2010 | 2345886
(http://support.microsoft.com/kb/2345886/
)
| HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters\SmbServerNameHardeningLevel
|
| 7/13/2012 | 2732618
(http://support.microsoft.com/kb/2732618/
)
| HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters\ABELevel
|
Server 2008 Registry keys that have been introduced with hotfixes or security updates:
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| Date | Knowledge Base article | Registry key | | |
|---|
| 10/05/2012 | 2761551
(http://support.microsoft.com/kb/2761551/
)
| HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters\SrvMaxThreadsPerQueue |
| 03/08/2013 | 2732618
(http://support.microsoft.com/kb/2732618/
)
| HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters\ABELevel |
| |
|
The
Server Message Block (SMB) model consists of two entities: the client and the server.
On the client, applications perform system calls by requesting operations on remote files. These requests are handled by the redirector subsystem (rdbss.sys) and by the SMB mini-redirector (mrxsmb.sys), both of which translate the requests into SMB protocol sessions and requests over TCP/IP. Starting with Windows Vista, the SMB 2.0 protocol is supported. The mrxsmb10.sys driver handles legacy SMB traffic, and the mrxsmb20.sys driver handles SMB 2.0 traffic.
On the server, SMB connections are accepted, and SMB requests are processed as local file system operations through NTFS and the local storage stack. The srv.sys driver handles legacy SMB traffic, and the srv2.sys driver handles SMB 2.0 traffic. The srvnet.sys component implements the interface between networking and the file server for both SMB protocols. File system metadata and content can be cached in memory via the system cache in the kernel (ntoskrnl.exe).
Figure 1 provides an overview of the different layers through which a user request on a client computer must go to perform file operations over the network on a remote SMB file server by using SMB 2.0.
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Services for Network File System (NFS) in a Windows Server 2008 R2 environment
NFS Server components
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| Date added | Knowledge Base article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 01/02/2013 | 2790978
(http://support.microsoft.com/kb/2790978/
)
| MS13-014: Vulnerability in NFS server could allow denial of service: February 12, 2013
| This security update contains the most current version ofNfssvc.exe and Nfssvr.sys
and Msnfsflt.sys. (GDR/LDR) | To apply this hotfix, you must have Windows Server 2008 R2 SP1 installed. Available for individual download. Available from Microsoft Update. |
| 01/14/2011 | 2485543
(http://support.microsoft.com/kb/2485543/
)
| You cannot access or mount a Windows Server 2008 R2-based NFS share after a failover if the NFS share uses Krb5 or Krb5i authentication
| This hotfix contains the most current version of Rpcxdr.sys. | To apply this hotfix, you must haveWindows Server 2008 R2, or Windows Server 2008 R2 SP1 installed. Available for individual download. |
| | | | |
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| Date added | Knowledge Base article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 09/28/2012 | 2761774
(http://support.microsoft.com/kb/2761774/
)
| "0x800704C9" error when you copy files to an NFS server from a Windows 7-based or Windows Server 2008 R2-based NFS client after the server is restarted
| This hotfix contains the most current version of Nfsclnt.exe, Nfsnp.dll and Nfsrdr.sys. | To apply this hotfix, you must have Windows 7 SP1, or Windows Server 2008 R2 SP1 installed. Available for individual download. |
| 05/01/2012 | 2675614
(http://support.microsoft.com/kb/2675614/
)
| Command shell program stops responding when you use a telnet session to connect to a Windows Server 2008 R2-based computer that has Subsystem for UNIX-based Applications installed
| This hotfix contains the most current version of Psxdll.dll, Psxdllsvr.dll, Psxss.exe, Posix.exe. | To apply this hotfix, you must have Windows 7,Windows 7 SP1, Windows Server 2008 R2, or Windows Server 2008 R2 SP1 installed. Available for individual download. |
| |
| | |
NFS Server components
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| Date added | Knowledge Base article | Title | Why we recommend this hotfix | Hotfix type and availability |
|---|
| 04/06/2013 | 2813363
(http://support.microsoft.com/kb/2813363/
)
| Can't perform a file operation from a UNIX client to a Windows Server 2008-based NFS server
| This security update contains the most current version of Nfssvc.exe and Nfssvr.sys
and Msnfsflt.sys. | To apply this hotfix, you must have Windows Vista SP2 or Windows Server 2008 SP2 or later versions installed. Available from Microsoft Update. |
| 09/24/2012 | 970706
(http://support.microsoft.com/kb/970706/
)
|
A computer that is running Windows Server 2003 SP2, Windows Vista or Windows Server 2008 crashes when a third-party filter driver returns the "STATUS_PENDING" value in response to an IRP | This hotfix contains the most current version of Rpcxdr.sys. | To apply this hotfix, you must have Windows Vista SP2 or Windows Server 2008 SP2 or later versions installed. Available from Microsoft Update. |
| | | | |
Services for NFS includes the following components:
Server for NFS
This component corresponds to the server-side implementation of the NFS file-sharing protocol. Server for NFS enables a computer that is running Windows Server 2008 R2 to act as a file server for UNIX-based client computers.
Client for NFS. This component corresponds to the client-side implementation of the NFS file-sharing protocol. Client for NFS enables a Windows-based computer that is running Windows Server 2008 R2 (or Windows 7) to access files that are stored on a UNIX-based NFS server.
Windows Server 2008 R2 includes both the Server for NFS and Client for NFS components. However, Windows 7 includes only Client for NFS.
For more information about the step-by-step guide for the services for NFS, go to the following Microsoft website:
General information about the step-by-step guide for the services for NFS
(http://technet.microsoft.com/en-us/library/dd758767(v=WS.10).aspx)
ReferencesFor more information about currently available hotfixes for Distributed File System (DFS) technologies in Windows Server 2008 and in Windows Server 2008 R2, click the following article number to view the article in the Microsoft Knowledge Base:
968429
(http://support.microsoft.com/kb/968429/
)
List of currently available hotfixes for Distributed File System (DFS) technologies in Windows Server 2008 and in Windows Server 2008 R2
2775511 An enterprise hotfix rollup is available for Windows 7 SP1 and Windows Server 2008 R2 SP1
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See
Terms of Use
(http://go.microsoft.com/fwlink/?LinkId=151500)
for other considerations.
Article ID: 2473205 - Last Review: May 17, 2013 - Revision: 32.0
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