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Symptoms

Consider the following scenario:

  • You install the Client for NFS component on a computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2.

  • You try to access some Network File System (NFS) shares on a server that has the READDIRPLUS remote procedure call (RPC) feature disabled.

In this scenario, the application that accesses the shared folders may stop responding.

Cause

This issue occurs because of an issue in the logic when the READDIRPLUS RPC is disabled.

When the READDIRPLUS RPC cannot be used to obtain data from the NFS server, the READDIR RPC is used instead. However, the client computer tries to use the READDIR RPC indefinitely because of an error in the NFS implementation for Windows Client. Therefore, the application does not respond.

Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:

  • Windows Vista Service Pack 2 (SP2)

  • Windows Server 2008 Service Pack 2 (SP2)

  • Windows 7

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2

  • Windows Server 2008 R2 Service Pack 1 (SP1)

Additionally, the Client for NFS component must be installed.

For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:

935791 How to obtain the latest Windows Vista service pack

For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

968849 How to obtain the latest service pack for Windows Server 2008

For more information about how to obtain a Windows 7 or a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Vista and Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.0.600
    2.
    22xxx

    Windows Vista and Windows Server 2008

    SP2

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. MUM files and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008 SP2 and of Windows Vista SP2

File name

File version

File size

Date

Time

Platform

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

07-Apr-2011

16:03

Not applicable

Nfsclnt.exe

6.0.6002.22623

51,200

07-Apr- 2011

14:09

x86

Nfsnp.dll

6.0.6002.22623

60,928

07-Apr- 2011

16:24

x86

Nfsrdr.mof

Not applicable

4,448

15-Mar-2011

06:12

Not applicable

Nfsrdr.sys

6.0.6002.22623

196,608

07-Apr-2011

14:09

x86

For all supported x64-based versions of Windows Server 2008 SP2 and of Windows Vista SP2

File name

File version

File size

Date

Time

Platform

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

07-Apr-2011

18:23

Not applicable

Nfsclnt.exe

6.0.6002.22623

63,488

07-Apr- 2011

14:33

x64

Nfsnp.dll

6.0.6002.22623

71,168

07-Apr- 2011

16:43

x64

Nfsrdr.mof

Not applicable

4,448

15-Mar-2011

05:18

Not applicable

Nfsrdr.sys

6.0.6002.22623

237,568

07-Apr-2011

14:33

x64

For all supported IA-64–based versions of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

07-Apr-2011

16:13

Not applicable

Nfsclnt.exe

6.0.6002.22623

148,480

07-Apr- 2011

14:36

IA-64

Nfsnp.dll

6.0.6002.22623

156,672

07-Apr-2011

16:35

IA- 64

Nfsrdr.mof

Not applicable

4,448

15-Mar-2011

06:07

Not applicable

Nfsrdr.sys

6.0.6002.22623

574,464

07-Apr-2011

14:36

IA-64

Windows 7 and Windows Server 2008 R2 file information notes


Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    0.
    20xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.
    21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

12-May-2011

04:57

Not applicable

Nfsclnt.exe

6.1.7600.20965

52,736

12-May-2011

04:40

x86

Nfsnp.dll

6.1.7600.20965

59,904

12-May-2011

04:45

x86

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:40

Not applicable

Nfsrdr.sys

6.1.7600.20965

201,728

12-May-2011

02:28

x86

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

12-May-2011

06:16

Not applicable

Nfsclnt.exe

6.1.7601.21726

52,736

12-May-2011

05:56

x86

Nfsnp.dll

6.1.7601.21726

59,904

12-May-2011

06:02

x86

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:40

Not applicable

Nfsrdr.sys

6.1.7601.21726

201,728

12-May-2011

03:18

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

12-May-2011

05:28

Not applicable

Nfsclnt.exe

6.1.7600.20965

65,024

12-May-2011

05:11

x64

Nfsnp.dll

6.1.7600.20965

71,680

12-May-2011

05:15

x64

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:02

Not applicable

Nfsrdr.sys

6.1.7600.20965

246,784

12-May-2011

02:37

x64

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

12-May-2011

05:29

Not applicable

Nfsclnt.exe

6.1.7601.21726

65,536

12-May-2011

05:15

x64

Nfsnp.dll

6.1.7601.21726

71,680

12-May-2011

05:19

x64

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:02

Not applicable

Nfsrdr.sys

6.1.7601.21726

246,784

12-May-2011

02:30

x64

For all supported IA-64–based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

12-May-2011

04:21

Not applicable

Nfsclnt.exe

6.1.7600.20965

155,648

12-May-2011

04:05

IA-64

Nfsnp.dll

6.1.7600.20965

159,232

12-May-2011

04:09

IA-64

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:07

Not applicable

Nfsrdr.sys

6.1.7600.20965

587,264

12-May-2011

01:55

IA-64

Nfs-clientcore-ppdlic.xrm-ms

Not applicable

3,001

12-May-2011

04:18

Not applicable

Nfsclnt.exe

6.1.7601.21726

156,160

12-May-2011

04:02

IA-64

Nfsnp.dll

6.1.7601.21726

159,232

12-May-2011

04:06

IA-64

Nfsrdr.mof

Not applicable

4,471

10-Jun-2009

21:07

Not applicable

Nfsrdr.sys

6.1.7601.21726

587,264

12-May-2011

01:47

IA-64

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows Vista SP2 and for Windows Server 2008 SP2

Additional files for all supported x86-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

X86_microsoft-windows-nfs- clientcore_31bf3856ad364e35_6.0.6002.22623_none_af3ffb9e58e57831.manifest

File version

Not applicable

File size

40,434

Date (UTC)

07-Apr- 2011

Time (UTC)

16:43

Additional files for all supported x64-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

Amd64_microsoft-windows-nfs- clientcore_31bf3856ad364e35_6.0.6002.22623_none_0b5e97221142e967.manifest

File version

Not applicable

File size

40,470

Date (UTC)

07-Apr- 2011

Time (UTC)

18:30

Additional files for all supported IA-64–based versions of Windows Server 2008 SP2

File name

Ia64_microsoft-windows-nfs- clientcore_31bf3856ad364e35_6.0.6002.22623_none_af419f9458e3812d.manifest

File version

Not applicable

File size

40,452

Date (UTC)

07-Apr- 2011

Time (UTC)

16:46

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

X86_c305bfb6c8638f641e3b7e1558d4fb23_31bf3856ad364e35_6.1.7600.20965_none_e72ee3ad955287e5.manifest

File version

Not applicable

File size

702

Date (UTC)

12-May-2011

Time (UTC)

08:35

File name

X86_d6f801797cb6db9cd2826d44e7e2c238_31bf3856ad364e35_6.1.7601.21726_none_768b1cc7d403c480.manifest

File version

Not applicable

File size

702

Date (UTC)

12-May-2011

Time (UTC)

08:35

File name

X86_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7600.20965_none_ad5818f9bcf50540.manifest

File version

Not applicable

File size

28,372

Date (UTC)

12-May-2011

Time (UTC)

05:10

File name

X86_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7601.21726_none_af6ab5f9b9fa1abf.manifest

File version

Not applicable

File size

28,372

Date (UTC)

12-May-2011

Time (UTC)

06:28

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_82b18fee1307a509a05aef0e2024cd50_31bf3856ad364e35_6.1.7601.21726_none_d5f33cb2a606bd7c.manifest

File version

Not applicable

File size

706

Date (UTC)

12-May-2011

Time (UTC)

08:35

File name

Amd64_845f7ee25d3e6e30e8f9a52a8c234d47_31bf3856ad364e35_6.1.7600.20965_none_375e84d4e8d1d2fa.manifest

File version

Not applicable

File size

706

Date (UTC)

12-May-2011

Time (UTC)

08:35

File name

Amd64_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7600.20965_none_0976b47d75527676.manifest

File version

Not applicable

File size

28,376

Date (UTC)

12-May-2011

Time (UTC)

06:08

File name

Amd64_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7601.21726_none_0b89517d72578bf5.manifest

File version

Not applicable

File size

28,376

Date (UTC)

12-May-2011

Time (UTC)

07:11

Additional files for all supported IA-64–based versions of Windows Server 2008 R2

File name

Ia64_323a2b2fe0b0756c880e8f5893f2e946_31bf3856ad364e35_6.1.7600.20965_none_4ddc80a4af868430.manifest

File version

Not applicable

File size

704

Date (UTC)

12-May-2011

Time (UTC)

08:35

File name

Ia64_bcaa365e38c71bb236efeef34b7d0435_31bf3856ad364e35_6.1.7601.21726_none_b97d18e6c0556388.manifest

File version

Not applicable

File size

704

Date (UTC)

12-May-2011

Time (UTC)

08:35

File name

Ia64_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7600.20965_none_ad59bcefbcf30e3c.manifest

File version

Not applicable

File size

28,374

Date (UTC)

12-May-2011

Time (UTC)

06:04

File name

Ia64_microsoft-windows-nfs-clientcore_31bf3856ad364e35_6.1.7601.21726_none_af6c59efb9f823bb.manifest

File version

Not applicable

File size

28,374

Date (UTC)

12-May-2011

Time (UTC)

07:10

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