After this update is installed, the administrator can specify and configure the UDP ports that handle multicast traffic to bypass the base filtering engine. This update also enables the administrator to configure associated processing costs that is specific to multicast datagram reception.
This hotfix is also available at
Microsoft Update Catalog.
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: 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 update, you must be running Windows 8 or Windows Server 2012.
Registry information
After this update is installed, you can create a
REG_MULTI_SZ type registry key named
UdpExemptPortRange to configure the port ranges that are exempted from the base filtering engine. To do this, create the registry key in the following path:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\services\Tcpip\Parameters\For example, you can configure the following value in the registry key:
3400
1000-1030
2000-2050
The smallest port number to use is 1 and the highest is 65535.
Notes- Each exempted port range should be in a new line.
- You must restart the computer after you changed the registry key.
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 8 and Windows Server 2012 file information notes
Important Windows 8 hotfixes and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" 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" 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 |
|---|
| 6.2.920 0.16 xxx | Windows RT, Windows 8, and Windows Server 2012 | RTM | GDR |
| 6.2.920 0.20 xxx | Windows RT, Windows 8, and Windows Server 2012 | RTM | LDR |
- GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
- 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 and Windows Server 2012" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical 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 8
| File name | File version | File size | Date | Time | Platform |
|---|
| Fwpkclnt.sys | 6.2.9200.16384 | 271,088 | 26-Jul-2012 | 03:30 | x86 |
| Tcpip.sys | 6.2.9200.20686 | 1,817,352 | 11-Apr-2013 | 23:06 | x86 |
For all supported x64-based versions of Windows 8 and of Windows Server 2012
| File name | File version | File size | Date | Time | Platform |
|---|
| Fwpkclnt.sys | 6.2.9200.16384 | 411,888 | 26-Jul-2012 | 04:43 | x64 |
| Tcpip.sys | 6.2.9200.20686 | 2,226,952 | 12-Apr-2013 | 00:29 | x64 |