An HTTP proxy is ignored when RPC calls are made from a computer that is running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2

Notice

For a Windows 8, Windows RT, or Windows Server 2012 version of this article, see Microsoft Knowledge Base article 2870248.
Symptoms
Consider the following scenario:
  • You have a computer that is running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2.
  • From this computer, you configure an HTTP proxy on a server by running a proxy automatic configuration (.pac) file.  

In this scenario, all remote procedure calls (RPCs) from the computer ignore the HTTP proxy. Instead, the RPCs connect directly to the server.
Resolution

Hotfix information

A supported hotfix is available from Microsoft Support. 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, go to the following Microsoft website: 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 one of the following operating systems:
  • Windows 8.1
  • Windows RT 8.1
  • Windows Server 2012 R2

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

File information

The English (United States) 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 8.1 and Windows Server 2012 R2 file information and notes

Important Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" 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 8.1" 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.
    VersionProductMilestoneService branch
    6.3.960 0.16xxxWindows 8.1 and Windows Server 2012 R2RTMGDR
  • 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 8.1 and Windows Server 2012 R2" 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 8.1
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.3.9600.16523144,38431-Jan-201411:11x86
For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.3.9600.16523191,48831-Jan-201411:59x64
Rpchttp.dll6.3.9600.16523144,38431-Jan-201411:11x86
For all supported ARM-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.3.9600.16523141,31231-Jan-201409:56Not Applicable

Additional file information

Additional file information for Windows 8.1 and Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1
File nameX86_c64f9ad0d2627db0935960d7271efa63_31bf3856ad364e35_6.3.9600.16523_none_baf7dafcca90ec88.manifest
File versionNot Applicable
File size696
Date (UTC)31-Jan-2014
Time (UTC)23:15
PlatformNot Applicable
File nameX86_microsoft-windows-rpc-http_31bf3856ad364e35_6.3.9600.16523_none_34d894815abdb83d.manifest
File versionNot Applicable
File size9,019
Date (UTC)31-Jan-2014
Time (UTC)14:09
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2
File nameAmd64_c64f9ad0d2627db0935960d7271efa63_31bf3856ad364e35_6.3.9600.16523_none_1716768082ee5dbe.manifest
File versionNot Applicable
File size698
Date (UTC)31-Jan-2014
Time (UTC)22:41
PlatformNot Applicable
File nameAmd64_d956c0b10522425fc214aeea075c6ae0_31bf3856ad364e35_6.3.9600.16523_none_f67124e632334087.manifest
File versionNot Applicable
File size700
Date (UTC)31-Jan-2014
Time (UTC)22:41
PlatformNot Applicable
File nameAmd64_microsoft-windows-rpc-http_31bf3856ad364e35_6.3.9600.16523_none_90f73005131b2973.manifest
File versionNot Applicable
File size9,023
Date (UTC)31-Jan-2014
Time (UTC)16:17
PlatformNot Applicable
File nameX86_microsoft-windows-rpc-http_31bf3856ad364e35_6.3.9600.16523_none_34d894815abdb83d.manifest
File versionNot Applicable
File size9,019
Date (UTC)31-Jan-2014
Time (UTC)14:09
PlatformNot Applicable
Additional files for all supported ARM-based versions of Windows 8.1
File nameArm_b3f627fc094a518db4eb182e168c3986_31bf3856ad364e35_6.3.9600.16523_none_a9e9f638669f9f3a.manifest
File versionNot Applicable
File size696
Date (UTC)31-Jan-2014
Time (UTC)23:40
PlatformNot Applicable
File nameArm_microsoft-windows-rpc-http_31bf3856ad364e35_6.3.9600.16523_none_34db06d95abad703.manifest
File versionNot Applicable
File size9,019
Date (UTC)31-Jan-2014
Time (UTC)11:28
PlatformNot Applicable
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminology that Microsoft uses to describe software updates.
Properties

Article ID: 2930145 - Last Review: 05/12/2016 02:10:00 - Revision: 2.0

Windows 8.1, Windows RT 8.1, Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 R2 Standard

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