"The Specified port is unknown" error message when you use GPP to deploy printers to a computer that is running Windows

Applies To
Windows 7 Enterprise Windows 7 Home Premium Windows 7 Home Basic Windows 7 Professional Windows 7 Starter Windows 7 Ultimate Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Foundation Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Edition Windows Server 2008 Service Pack 2 Windows Server 2008 Datacenter Windows Server 2008 Enterprise Windows Server 2008 Foundation Windows Server 2008 Standard Windows Server 2008 for Itanium-Based Systems

Symptoms

When you use Group Policy Preferences (GPP) to deploy printers to a client computer that is running Windows 7, Windows Server 2008 R2, or Windows Server 2008 Service Pack 2 (SP2), the deployment fails. Additionally, you receive the following error message:

Note

The specified port is unknown (0x80070704 or 0x704)

        
Note You also receive the error message when you try to manually connect the printers to the computer.

When the issue occurs, the following event log is logged:

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 the problem described in this article. 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 website:

http:⁠//support.microsoft.com/contactus/?ws=support Note 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 Windows 7 Service Pack 1 (SP1), Windows Server 2008 R2 SP1, or Windows Server 2008 SP2.

For more information about how to obtain a Windows 7 or 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

  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

Registry information

To apply this hotfix, 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 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, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version Product Milestone Service branch
    6.1.760
    1.22xxx
    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 7 and for Windows Server 2008 R2" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintaining the state of the updated component. 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
Win32spl.dll 6.1.7601.22100 492,544 27-Aug-2012 16:49
Win32spl.dll 6.1.7601.22100 492,544 27-Aug-2012 16:49

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

File name File version File size Date Time Platform
Win32spl.dll 6.1.7601.22100 751,104 27-Aug-2012 17:53 x64
Win32spl.dll 6.1.7601.22100 751,104 27-Aug-2012 17:53 x64
Win32spl.dll 6.1.7601.22100 492,544 27-Aug-2012 16:49 x86
Win32spl.dll 6.1.7601.22100 492,544 27-Aug-2012 16:49 x86

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

File name File version File size Date Time Platform
Win32spl.dll 6.1.7601.22100 1,513,472 27-Aug-2012 16:47 IA-64
Win32spl.dll 6.1.7601.22100 492,544 27-Aug-2012 16:49 x86

Windows Server 2008 file information notes

Important Windows Vista hotfixes and Windows Server 2008 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 Vista/Windows Server 2008" 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, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version Product Milestone Service branch
    6.0.600
    2.23xxx
    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" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintaining the state of the updated component. 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

File name File version File size Date Time Platform
Printcom.dll 6.0.6002.23370 37,376 05-Apr-2014 02:58 x86
Win32spl.dll 6.0.6002.23370 443,392 05-Apr-2014 02:59 x86

For all supported x64-based versions of Windows Server 2008

File name File version File size Date Time Platform
Printcom.dll 6.0.6002.23370 44,544 05-Apr-2014 03:56 x64
Win32spl.dll 6.0.6002.23370 685,568 05-Apr-2014 03:57 x64
Printcom.dll 6.0.6002.23370 37,376 05-Apr-2014 02:58 x86
Win32spl.dll 6.0.6002.23370 443,392 05-Apr-2014 02:59 x86

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

File name File version File size Date Time Platform
Printcom.dll 6.0.6002.23370 98,816 05-Apr-2014 02:38 IA-64
Win32spl.dll 6.0.6002.23370 1,358,336 05-Apr-2014 02:39 IA-64
Printcom.dll 6.0.6002.23370 37,376 05-Apr-2014 02:58 x86
Win32spl.dll 6.0.6002.23370 443,392 05-Apr-2014 02:59 x86

      

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 7 and for Windows Server 2008 R2

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

File name X86_c33c250f85c4594712f503e36525a404_31bf3856ad364e35_6.1.7601.22100_none_d545a9bdbfd56ee1.manifest
File version Not applicable
File size 718
Date (UTC) 28-Aug-2012
Time (UTC) 06:16
File name X86_f07c8cf8302d7da4f467e17f5767295f_31bf3856ad364e35_7.1.7601.22100_none_7fa29c80a6a62949.manifest
File version Not applicable
File size 718
Date (UTC) 28-Aug-2012
Time (UTC) 06:16
File name X86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.22100_none_3c0aefede8456358.manifest
File version Not applicable
File size 10,424
Date (UTC) 27-Aug-2012
Time (UTC) 17:18
File name X86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_7.1.7601.22100_none_2d7b6c33732c0c27.manifest
File version Not applicable
File size 6,369
Date (UTC) 27-Aug-2012
Time (UTC) 17:22

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

File name Amd64_0f501136515e1ca674e915d5a1747e4b_31bf3856ad364e35_6.1.7601.22100_none_a6cc68f72776ca4f.manifest
File version Not applicable
File size 722
Date (UTC) 28-Aug-2012
Time (UTC) 06:16
File name Amd64_efffb0def6d6f61875beaec76edb289e_31bf3856ad364e35_7.1.7601.22100_none_3ab06d43fdba0425.manifest
File version Not applicable
File size 1,086
Date (UTC) 28-Aug-2012
Time (UTC) 06:16
File name Amd64_fb14bd376b1d134e8a31dbf6dad10f15_31bf3856ad364e35_6.1.7601.22100_none_3bcb97555b2413c9.manifest
File version Not applicable
File size 722
Date (UTC) 28-Aug-2012
Time (UTC) 06:16
File name Amd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.22100_none_98298b71a0a2d48e.manifest
File version Not applicable
File size 10,428
Date (UTC) 27-Aug-2012
Time (UTC) 18:22
File name Amd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_7.1.7601.22100_none_899a07b72b897d5d.manifest
File version Not applicable
File size 6,373
Date (UTC) 27-Aug-2012
Time (UTC) 18:28
File name Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.22100_none_a27e35c3d5039689.manifest
File version Not applicable
File size 10,426
Date (UTC) 27-Aug-2012
Time (UTC) 17:06
File name Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_7.1.7601.22100_none_93eeb2095fea3f58.manifest
File version Not applicable
File size 6,371
Date (UTC) 27-Aug-2012
Time (UTC) 17:06

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

File name Ia64_7dbf523c929279cf259e53d5d044dd39_31bf3856ad364e35_6.1.7601.22100_none_5294f833e63f2b86.manifest
File version Not applicable
File size 1,084
Date (UTC) 28-Aug-2012
Time (UTC) 06:16
File name Ia64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.22100_none_3c0c93e3e8436c54.manifest
File version Not applicable
File size 10,426
Date (UTC) 27-Aug-2012
Time (UTC) 18:08
File name Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.22100_none_a27e35c3d5039689.manifest
File version Not applicable
File size 10,426
Date (UTC) 27-Aug-2012
Time (UTC) 17:06

Additional file information for Windows Server 2008

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

File property Value
File name X86_2513d7766cea1457606e40356eec4380_31bf3856ad364e35_6.0.6002.23370_none_29accce4f5c7c4f4.manifest
File version Not applicable
File size 718
Date (UTC) 07-Apr-2014
Time (UTC) 12:25
Platform Not applicable
File name X86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6002.23370_none_3b978cae8766c7db.manifest
File version Not applicable
File size 48,324
Date (UTC) 05-Apr-2014
Time (UTC) 03:38
Platform Not applicable

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

File property Value
File name Amd64_08cf294d7248b8403e4b9eedac703e60_31bf3856ad364e35_6.0.6002.23370_none_baf168767cc05685.manifest
File version Not applicable
File size 1,086
Date (UTC) 07-Apr-2014
Time (UTC) 12:25
Platform Not applicable
File name Amd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6002.23370_none_97b628323fc43911.manifest
File version Not applicable
File size 48,362
Date (UTC) 05-Apr-2014
Time (UTC) 04:44
Platform Not applicable
File name Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6002.23370_none_a20ad2847424fb0c.manifest
File version Not applicable
File size 49,128
Date (UTC) 05-Apr-2014
Time (UTC) 03:33
Platform Not applicable

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

File property Value
File name Ia64_0ce5b743df4b1033fb7073778a1e85b6_31bf3856ad364e35_6.0.6002.23370_none_6ab481f8d73b79d3.manifest
File version Not applicable
File size 1,084
Date (UTC) 07-Apr-2014
Time (UTC) 12:25
Platform Not applicable
File name Ia64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6002.23370_none_3b9930a48764d0d7.manifest
File version Not applicable
File size 48,343
Date (UTC) 05-Apr-2014
Time (UTC) 03:25
Platform Not applicable
File name Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6002.23370_none_a20ad2847424fb0c.manifest
File version Not applicable
File size 49,128
Date (UTC) 05-Apr-2014
Time (UTC) 03:33
Platform Not applicable