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Symptoms

On a multiprocessor computer that is running Windows Vista or Windows Server 2008, a network connectivity failure occurs randomly when you run certain utilities, such as the Remote Shell (Rsh.exe) utility or the Remote Copy (Rcp.exe) utility. This problem occurs if a network application is using the same four-tuple (server IP address, server port, client IP address, and client port) every time that the utility reconnects a TCP session in a TCP TIME-WAIT delay period.

For example, consider the following scenario:

  • On the Windows XP-based computer, the Remote Shell service is installed.

  • On the Windows Vista-based computer that has multiple processors, the Remote Shell utility (Rsh.exe) is installed.

  • You use the Remote Shell utility on the Windows Vista-based computer to access the Windows XP-based computer.

  • The Remote Shell utility commands continue to run one after another for several minutes.

In this scenario, the Remote Shell utility may fail. Additionally, you may receive an error message that resembles the following:

Windows XP computer name: Operation timed out

Cause

On a Windows Vista-based or Windows Server 2008-based computer that has multiple processors, the TCP initial sequence number (ISN) generation method has changed. Therefore, if a TCP connection that uses the same four-tuple (server IP address, server port, client IP address, and client port) is reestablished in a TCP TIME-WAIT delay period to a remote host, the ISN that is generated for that connection does not let the TCP session continue. However, you expect the session to continue. For more information, see Request for Comments (RFC) 1337, "TIME-WAIT Assassination Hazards in TCP. To see RFC 1337, visit the following Internet Society Web site:

http://www.rfc-editor.org/Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

Resolution

A hotfix is available to resolve this problem. However, not all the Windows Vista-based or Windows Server 2008-based multiprocessor computers need this hotfix. Only the computers that run the specific commands need the hotfix.

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. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

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, contact 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.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

There are no prerequisites.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information


This hotfix does not replace any other previously released hotfixes.

Registry information


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

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista and Windows Server 2008, x86-based versions

File name

File version

File size

Date

Time

Platform

Package_1_for_kb950319~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

2,230

01-Apr-2008

17:35

Not applicable

Package_2_for_kb950319~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

2,177

01-Apr-2008

17:35

Not applicable

Package_3_for_kb950319~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,729

01-Apr-2008

17:35

Not applicable

Package_4_for_kb950319~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

2,235

01-Apr-2008

17:35

Not applicable

Package_5_for_kb950319~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

2,235

01-Apr-2008

17:35

Not applicable

Package_6_for_kb950319~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

2,227

01-Apr-2008

17:35

Not applicable

Package_7_for_kb950319~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

2,222

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,426

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,641

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_client~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,713

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,422

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_sc~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,423

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,425

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_server~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,431

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,422

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,430

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpe_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,420

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpe~31bf3856ad364e35~x86~~6.0.1.0.mum

Not applicable

1,424

01-Apr-2008

17:35

Not applicable

Update.mum

Not applicable

3,571

01-Apr-2008

17:35

Not applicable

X86_01b3842588e2ab7d102bb353cae0fa07_31bf3856ad364e35_6.0.6001.22147_none_0179a94323980179.manifest

Not applicable

702

01-Apr-2008

17:35

Not applicable

X86_298c4977323e015722edce2536a02fd5_31bf3856ad364e35_6.0.6000.20804_none_ce116928d6710a25.manifest

Not applicable

1,393

01-Apr-2008

17:35

Not applicable

X86_82d6970ee8f994a25b21dac98fdf128e_31bf3856ad364e35_6.0.6001.22147_none_a0559d9aa5e9df04.manifest

Not applicable

1,402

01-Apr-2008

17:35

Not applicable

X86_8857463a7dc82782d56583b92926e102_31bf3856ad364e35_6.0.6001.22147_none_ae14213eff0186d2.manifest

Not applicable

1,056

01-Apr-2008

17:35

Not applicable

X86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6000.20804_none_5542ce08d140f8bb.manifest

Not applicable

3,908

01-Apr-2008

05:04

Not applicable

X86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22147_none_5700cbf6ce85484e.manifest

Not applicable

3,908

01-Apr-2008

05:22

Not applicable

X86_microsoft-windows-network-security_31bf3856ad364e35_6.0.6000.20804_none_cbcbd11c467e4965.manifest

Not applicable

126,920

01-Apr-2008

05:05

Not applicable

X86_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22147_none_cd89cf0a43c298f8.manifest

Not applicable

127,634

01-Apr-2008

05:24

Not applicable

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6001.22147_none_b38371737f9e01e5.manifest

Not applicable

6,254

01-Apr-2008

05:25

Not applicable

X86_microsoft-windows-tcpip_31bf3856ad364e35_6.0.6000.20804_none_602cf70fab4d1c14.manifest

Not applicable

28,871

01-Apr-2008

05:02

Not applicable

Netio.sys

6.0.6000.20804

217,144

01-Apr-2008

04:45

x86

Netio.sys

6.0.6001.22147

223,288

01-Apr-2008

04:54

x86

Bfe.dll

6.0.6000.20804

317,440

01-Apr-2008

04:33

x86

Fwpkclnt.sys

6.0.6000.20804

85,504

01-Apr-2008

02:34

x86

Fwpuclnt.dll

6.0.6000.20804

543,232

01-Apr-2008

04:34

x86

Ikeext.dll

6.0.6000.20804

416,768

01-Apr-2008

04:34

x86

Wfp.mof

Not applicable

816

09-Jan-2008

23:23

Not applicable

Wfp.tmf

Not applicable

115,173

01-Apr-2008

02:34

Not applicable

Bfe.dll

6.0.6001.22147

328,704

01-Apr-2008

04:34

x86

Fwpkclnt.sys

6.0.6001.22147

101,432

01-Apr-2008

04:53

x86

Fwpuclnt.dll

6.0.6001.22147

595,456

01-Apr-2008

04:36

x86

Ikeext.dll

6.0.6001.22147

438,272

01-Apr-2008

04:36

x86

Wfp.mof

Not applicable

814

18-Dec-2007

21:11

Not applicable

Wfp.tmf

Not applicable

175,508

01-Apr-2008

02:40

Not applicable

Tcpip.sys

6.0.6001.22147

891,448

01-Apr-2008

04:57

x86

Netiomig.dll

6.0.6000.20804

49,152

01-Apr-2008

04:36

x86

Netiougc.exe

6.0.6000.20804

22,016

01-Apr-2008

02:34

x86

Tcpip.sys

6.0.6000.20804

805,888

01-Apr-2008

02:35

x86

Tcpipcfg.dll

6.0.6000.20804

167,424

01-Apr-2008

04:37

x86

Windows Vista and Windows Server 2008, x64-based versions

File name

File version

File size

Date

Time

Platform

Amd64_0b3203d7cab0fa4e6ef1ca92ec50c175_31bf3856ad364e35_6.0.6001.22147_none_21faa5244e478b35.manifest

Not applicable

1,766

01-Apr-2008

17:35

Not applicable

Amd64_2477abd6891b7639fe83de4acce79eab_31bf3856ad364e35_6.0.6000.20804_none_7ae793a9cd3e5988.manifest

Not applicable

2,444

01-Apr-2008

17:35

Not applicable

Amd64_24b61cbb2fd7c6478932dbe3cf68891b_31bf3856ad364e35_6.0.6001.22147_none_8fae0e6591afb9b4.manifest

Not applicable

706

01-Apr-2008

17:35

Not applicable

Amd64_31c08ee77854bc771676dc6609a10ca2_31bf3856ad364e35_6.0.6001.22147_none_237e7f8cf15f875b.manifest

Not applicable

2,114

01-Apr-2008

17:35

Not applicable

Amd64_c1f17617feebafcf5fe6b75b2cf84e37_31bf3856ad364e35_6.0.6000.20804_none_da73ef2ea5cca287.manifest

Not applicable

1,401

01-Apr-2008

17:35

Not applicable

Amd64_dee4b4724d74a79838f66ac795f86049_31bf3856ad364e35_6.0.6001.22147_none_90c58b7b8872b680.manifest

Not applicable

1,410

01-Apr-2008

17:35

Not applicable

Amd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6000.20804_none_b161698c899e69f1.manifest

Not applicable

3,916

01-Apr-2008

05:33

Not applicable

Amd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22147_none_b31f677a86e2b984.manifest

Not applicable

3,916

01-Apr-2008

05:53

Not applicable

Amd64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6000.20804_none_27ea6c9ffedbba9b.manifest

Not applicable

126,964

01-Apr-2008

05:35

Not applicable

Amd64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22147_none_29a86a8dfc200a2e.manifest

Not applicable

127,680

01-Apr-2008

05:57

Not applicable

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6001.22147_none_0fa20cf737fb731b.manifest

Not applicable

6,276

01-Apr-2008

05:58

Not applicable

Amd64_microsoft-windows-tcpip_31bf3856ad364e35_6.0.6000.20804_none_bc4b929363aa8d4a.manifest

Not applicable

28,941

01-Apr-2008

05:32

Not applicable

Package_1_for_kb950319~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

2,244

01-Apr-2008

17:35

Not applicable

Package_2_for_kb950319~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

2,643

01-Apr-2008

17:35

Not applicable

Package_3_for_kb950319~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,739

01-Apr-2008

17:35

Not applicable

Package_4_for_kb950319~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

2,701

01-Apr-2008

17:35

Not applicable

Package_5_for_kb950319~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

2,701

01-Apr-2008

17:35

Not applicable

Package_6_for_kb950319~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

2,906

01-Apr-2008

17:35

Not applicable

Package_7_for_kb950319~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

2,236

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,434

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,651

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_client~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,723

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,430

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,431

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,433

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_server~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,439

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,430

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,438

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpe_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,428

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpe~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not applicable

1,432

01-Apr-2008

17:35

Not applicable

Update.mum

Not applicable

3,597

01-Apr-2008

17:35

Not applicable

Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6000.20804_none_bbb613debdff2bec.manifest

Not applicable

2,730

01-Apr-2008

04:58

Not applicable

Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22147_none_bd7411ccbb437b7f.manifest

Not applicable

2,730

01-Apr-2008

05:13

Not applicable

Wow64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6000.20804_none_323f16f2333c7c96.manifest

Not applicable

71,115

01-Apr-2008

04:59

Not applicable

Wow64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22147_none_33fd14e03080cc29.manifest

Not applicable

71,155

01-Apr-2008

05:13

Not applicable

Wow64_microsoft-windows-tcpip_31bf3856ad364e35_6.0.6000.20804_none_c6a03ce5980b4f45.manifest

Not applicable

22,999

01-Apr-2008

04:59

Not applicable

Netio.sys

6.0.6000.20804

324,664

01-Apr-2008

05:10

x64

Netio.sys

6.0.6001.22147

347,192

01-Apr-2008

05:32

x64

Bfe.dll

6.0.6000.20804

439,808

01-Apr-2008

04:53

x64

Fwpkclnt.sys

6.0.6000.20804

147,456

01-Apr-2008

03:01

x64

Fwpuclnt.dll

6.0.6000.20804

712,192

01-Apr-2008

04:53

x64

Ikeext.dll

6.0.6000.20804

419,328

01-Apr-2008

04:54

x64

Wfp.mof

Not applicable

816

09-Jan-2008

23:20

Not applicable

Wfp.tmf

Not applicable

115,073

01-Apr-2008

03:01

Not applicable

Bfe.dll

6.0.6001.22147

458,240

01-Apr-2008

05:00

x64

Fwpkclnt.sys

6.0.6001.22147

168,504

01-Apr-2008

05:32

x64

Fwpuclnt.dll

6.0.6001.22147

779,776

01-Apr-2008

05:02

x64

Ikeext.dll

6.0.6001.22147

454,656

01-Apr-2008

05:02

x64

Wfp.mof

Not applicable

814

18-Dec-2007

21:10

Not applicable

Wfp.tmf

Not applicable

174,680

01-Apr-2008

03:11

Not applicable

Tcpip.sys

6.0.6001.22147

1,421,368

01-Apr-2008

05:33

x64

Netiomig.dll

6.0.6000.20804

59,904

01-Apr-2008

04:56

x64

Netiougc.exe

6.0.6000.20804

25,600

01-Apr-2008

03:01

x64

Tcpip.sys

6.0.6000.20804

1,192,448

01-Apr-2008

03:02

x64

Tcpipcfg.dll

6.0.6000.20804

232,960

01-Apr-2008

04:57

x64

Fwpuclnt.dll

6.0.6000.20804

543,232

01-Apr-2008

04:34

x86

Wfp.mof

Not applicable

816

09-Jan-2008

23:23

Not applicable

Fwpuclnt.dll

6.0.6001.22147

595,456

01-Apr-2008

04:36

x86

Wfp.mof

Not applicable

814

18-Dec-2007

21:11

Not applicable

Netiomig.dll

6.0.6000.20804

49,152

01-Apr-2008

04:36

x86

Netiougc.exe

6.0.6000.20804

22,016

01-Apr-2008

02:34

x86

Tcpipcfg.dll

6.0.6000.20804

167,424

01-Apr-2008

04:37

x86

Windows Vista and Windows Server 2008, Itanium-based versions

File name

File version

File size

Date

Time

Platform

Ia64_22537895cc09484636b8df5f71ca8389_31bf3856ad364e35_6.0.6001.22147_none_0ea68f22b8593c10.manifest

Not applicable

1,406

01-Apr-2008

17:35

Not applicable

Ia64_7c8b4f5bc431505c9c5f2f4973398e02_31bf3856ad364e35_6.0.6001.22147_none_e0d5897894247a24.manifest

Not applicable

2,110

01-Apr-2008

17:35

Not applicable

Ia64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22147_none_57026fecce83514a.manifest

Not applicable

3,912

01-Apr-2008

05:34

Not applicable

Ia64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22147_none_cd8b730043c0a1f4.manifest

Not applicable

127,657

01-Apr-2008

05:36

Not applicable

Ia64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.0.6001.22147_none_b38515697f9c0ae1.manifest

Not applicable

6,265

01-Apr-2008

05:37

Not applicable

Package_1_for_kb950319~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

2,237

01-Apr-2008

17:35

Not applicable

Package_2_for_kb950319~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

2,694

01-Apr-2008

17:35

Not applicable

Package_3_for_kb950319~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

2,694

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

1,425

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

1,426

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

1,429

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_server~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

1,434

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

1,426

01-Apr-2008

17:35

Not applicable

Package_for_kb950319_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not applicable

1,433

01-Apr-2008

17:35

Not applicable

Update.mum

Not applicable

2,423

01-Apr-2008

17:35

Not applicable

Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.0.6001.22147_none_bd7411ccbb437b7f.manifest

Not applicable

2,730

01-Apr-2008

05:13

Not applicable

Wow64_microsoft-windows-network-security_31bf3856ad364e35_6.0.6001.22147_none_33fd14e03080cc29.manifest

Not applicable

71,155

01-Apr-2008

05:13

Not applicable

Netio.sys

6.0.6001.22147

641,592

01-Apr-2008

05:17

IA-64

Bfe.dll

6.0.6001.22147

781,312

01-Apr-2008

04:46

IA-64

Fwpkclnt.sys

6.0.6001.22147

264,248

01-Apr-2008

05:16

IA-64

Fwpuclnt.dll

6.0.6001.22147

1,122,304

01-Apr-2008

04:49

IA-64

Ikeext.dll

6.0.6001.22147

925,696

01-Apr-2008

04:50

IA-64

Wfp.mof

Not applicable

814

18-Dec-2007

21:11

Not applicable

Wfp.tmf

Not applicable

174,775

01-Apr-2008

03:04

Not applicable

Tcpip.sys

6.0.6001.22147

2,923,064

01-Apr-2008

05:04

IA-64

Fwpuclnt.dll

6.0.6001.22147

595,456

01-Apr-2008

04:36

x86

Wfp.mof

Not applicable

814

18-Dec-2007

21:11

Not applicable

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 new networking features in Windows Server 2008 and in Windows Vista, visit the following Microsoft Web site:

http://technet.microsoft.com/en-us/library/bb726965.aspxFor more information about the TCP TIME-WAIT delay, visit the following Microsoft Web site:

http://msdn.microsoft.com/en-us/library/ms819739.aspxFor more information, 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

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