Desktop software • Multimedia components

Windows 11 Codec Pack for video and audio playback.

A Windows 11-focused branch of the Media Player Codec Pack family for PCs that need DirectShow playback support for common video and audio files, including MP4, MKV, AV1, HEVC, H.264, XviD, FLAC, AC3 and AAC.

Current release 3.0.1 Released 17 June 2026

Installer size 66.7 MB

Platforms Windows 11 / 10 / Server

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Official installers are digitally signed by Cole Williams Software Limited. To verify before installing, right-click the installer and check Properties → Digital Signatures.

Overview

Focused on Windows 11 desktop playback workflows.

The package focuses on the playback components Windows desktop users most often miss: video decoders, audio decoders, splitters, subtitle handling, and practical configuration tools. Select a quick installation path or inspect individual components during setup.

Video decoding

AV1, H.264/AVC, H.265/HEVC, x264, x265, 10-bit variants, AVCHD, DivX, XviD, MPEG-4, MPEG-2, and related compression families.

Audio decoding

AAC, AC3, DTS, FLAC, ALAC, OPUS, OGG, APE, MPC, DSD, and other common or specialist audio formats.

Containers and splitters

MKV, MP4, M4V, AVI, WEBM, MOV, M2TS/MTS, TS, WMV/ASF, FLV, 3GP, VOB, BDMV, EVO, OGM, and related containers.

Configuration utilities

Includes settings tools, update checking, file association guidance, and quick access utilities for installed components.

Format coverage

Practical format coverage, grouped by playback role

The lists below group the formats people most often confuse: compression families, containers, audio tracks, subtitles and playlists. A file extension alone does not always reveal the codec inside.

Compression and codec families

Video containers and file types

Audio file types and tracks

Streams, subtitles and playlists

Real-world playback still depends on the media player, Windows configuration, graphics driver, and the exact way a file was encoded. The lists above highlight common examples, not a promise that every unusual or damaged file will play.

Popular format help

Common playback problems and where to start

Use these routes when you know the file type or symptom but are not sure whether the problem is video, audio, the container, or Windows Media Player.

MP4 and MKV playback

MP4 and MKV problems are often caused by a missing video decoder, audio decoder, or container splitter. The package focuses on common combinations such as MP4 with H.264/AAC and MKV with H.264, HEVC, AC3, DTS, or subtitles.

Review video codec support

AC3, AAC, DTS and missing sound

A video may open normally but stay silent when the audio track uses a format the current player cannot decode. AC3, AAC, DTS, FLAC and similar tracks are covered on the audio codec help page.

Review audio codec support

AV1, XviD, H.264 and HEVC video

Modern MP4, MKV, and WebM files may use AV1, H.264/AVC, or H.265/HEVC, while older AVI files frequently depend on XviD or DivX. These are useful terms to check when a player reports a missing codec.

Fix unsupported formats

Windows Media Player and DirectShow

Codec packs are most useful for Windows Media Player, Media Player Classic - Home Cinema, and other DirectShow-compatible desktop players that can use installed system components.

Windows Media Player codecs

Product family

A Windows 11 branch of Media Player Codec Pack.

The main Media Player Codec Pack site presents the broader Windows family, including Standard, Plus, and Lite edition choices for different users. This page keeps the message tighter for Windows 11 users who want a direct desktop codec package.

View Media Player Codec Pack

FocusWindows 11 Codec PackMedia Player Codec Pack

AudienceWindows 11 desktop usersWindows 11, 10, 8.1, 7 and supported Windows Server users

Choice modelSingle focused Windows 11 downloadStandard, Plus and Lite editions

Best useDirectShow and Windows Media Player support on Windows 11Choosing a general-purpose codec edition across Windows versions

Format languageMP4, MKV, AV1, XviD, H.264, HEVC and audio codecsBroad everyday playback: MKV, MP4, AV1, HEVC, FLAC and more

Codec help

Windows 11 playback guides

Focused pages for the most useful search paths: audio codec issues, broad video codec support, Windows Media Player codecs, and unsupported format errors.

Audio Codec for Windows 11Fix videos that play with no sound and common AAC, AC3, DTS or FLAC playback issues. Video Codec for Windows 11Understand MP4, AV1, MKV, XviD, H.264, HEVC and other video codec support. Windows Media Player CodecsCodec support for Windows Media Player and DirectShow-compatible desktop players. Fix Unsupported Video FormatTroubleshoot missing codec, unsupported file type, black screen and 0xc00d36c4 errors. HEVC playback choicesCompare Microsoft HEVC Video Extensions, the codec pack MPC-HC route, and HEVC.now browser playback. Dolby / AC3 audio helpUnderstand Dolby Access, AC3/Dolby Digital no-sound issues, and Store entitlement differences.

Playback fixes

How codec-related playback issues usually show up

Most playback failures fall into a small number of practical categories. Start with the symptom, then check the file type and the codec information reported by your media player.

Unsupported format errors

When Windows reports that a file format is unsupported, a missing decoder, splitter, or container handler is often the cause. The Windows 11 branch focuses on common playback gaps for MP4, MKV, AV1, HEVC, H.264, XviD, AVI, and related files.

Video plays with no sound

Audio-only problems are commonly linked to AC3, DTS, AAC, FLAC, or other audio tracks that the current player cannot decode. The package includes audio decoding components intended for DirectShow-compatible desktop players.

HEVC, MKV, or 4K files open poorly

Newer or higher-resolution media can depend on HEVC/H.265, H.264, subtitle filters, and container splitters. The installer gives users a structured way to add the required playback components on Windows 11 PCs.

Included package

Components and utilities

Download version 3.0.1

Codec components

LAV Video Decoder 0.82
ffdshow DirectShow Video Codec 1.3.4533
XviD Video Encoder 1.3.7
x264 Video Encoder v44.2851
Lagarith Video Encoder 1.3.27
LAV Audio Decoder 0.82
Sony DSD 1.0 Audio Decoder
DivX Audio Decoder 4.1
madFLAC Audio Decoder 1.1.0
DSP-worx Bass Source Mod Filter/Decoder 1.5.2.0
Haali Media Splitter/Decoder 1.13.138.44 (23/06/13)
LAV Splitter 0.82
xy-VSFilter 3.0.0.211 subtitle reader
CDXA Reader 1.7.13
Icaros 3.3.5

Utilities

Media Player Classic - Home Cinema 2.7.3 x86
Disc Handler for Blu-ray disc icons in Windows Explorer
Codec Settings GUI for audio, video, and advanced codec settings
Codec Settings UAC Manager for copying settings between users
Update Checker that checks once every 7 days
Tray Menu for codec utilities and quick audio profile switching

Installer preview

Setup and configuration screens

Review the installation flow before running the setup executable.

Windows 11 Codec Pack installer welcome screen

Windows 11 Codec Pack component selection

Windows 11 Codec Pack video codec settings

Windows 11 Codec Pack audio codec settings

Windows 11 Codec Pack codec settings

Windows 11 Codec Pack splitter settings

Windows 11 Codec Pack system capability detection

Windows 11 Codec Pack audio channel settings

Windows 11 Codec Pack power user settings

Windows 11 Codec Pack tray menu

FAQ

Common Windows 11 codec questions

Answers to the format, compatibility, and installation questions people commonly search before downloading a codec pack.

What is Windows 11 Codec Pack?

Windows 11 Codec Pack is a free multimedia codec package for Windows PCs. It installs codecs, DirectShow filters, splitters, and utilities for video and audio playback.

How is this related to Media Player Codec Pack?

This site is the Windows 11-focused branch of the broader Media Player Codec Pack family. The main Media Player Codec Pack site covers multiple Windows versions and edition choices, while this page keeps the message focused on Windows 11 playback needs.

Which video formats does the codec pack support?

The package is aimed at common Windows playback needs, including MKV, MP4, AVI, WEBM, MOV, M2TS/MTS, TS, WMV, FLV, VOB and related containers, plus AV1, H.264/AVC, H.265/HEVC, x264, x265, DivX, XviD, MPEG-4 and MPEG-2 video families.

Does it include MP4, XviD, and H.264 codecs for Windows 11?

Yes. The package includes components for MP4 playback, XviD video, H.264/AVC video, H.265/HEVC video, and other commonly searched Windows 11 codec formats.

Can it help with error 0xc00d36c4 or unsupported format messages?

In many common cases, yes. Unsupported format messages such as 0xc00d36c4 can appear when Windows or a desktop media player cannot find the required codec, splitter, or container support for the file.

Will it help if video plays but there is no sound?

It can help when the missing piece is an audio codec or DirectShow filter for tracks such as AAC, AC3, DTS, FLAC, or similar formats used inside video files.

Which media players can use the installed codecs?

The installed components are intended for Windows Media Player 10 and newer, Media Player Classic - Home Cinema, and other DirectShow-compatible desktop media players.

Do I need this if I already use VLC?

VLC includes many codecs internally, so many files may already play in VLC. A codec pack is most useful when you want broader playback support across Windows, Windows Media Player, Media Player Classic - Home Cinema, and other DirectShow-compatible software.

Can it help with MP4 or MKV files on Windows 11?

It can help when the issue is a missing DirectShow decoder, splitter, or audio component used by the MP4 or MKV file. Some DRM-protected, corrupted, or unusually encoded files may still require a different player or repair workflow.

Does it include AC3 audio codec support?

The package includes audio decoding components intended to help DirectShow-compatible players handle AC3 and other common audio tracks such as AAC, DTS and FLAC.

Can I choose which codec components to install?

Yes. The installer provides an easy setup path as well as a detailed mode for reviewing and selecting individual codec components and utilities.

Is Windows 11 Codec Pack free to download?

Yes. Windows 11 Codec Pack is offered as a free download from the official website.

When was the current release published?

The current Windows 11 Codec Pack release listed on this page is version 3.0.1, released on 17 June 2026.

Will a codec pack fix every file that will not play?

No. A codec pack can help when the missing piece is a decoder, splitter, subtitle filter, or related DirectShow component. DRM-protected, damaged, partially downloaded, or unusually encoded files may still require a different player, conversion, or file repair workflow.

Official download

Windows 11 Codec Pack 3.0.1

Free 66.7 MB installer, released 17 June 2026, for compatible Windows desktop systems and Windows Server 2025, 2022 and 2019 environments where desktop media playback components are required.

Publisher / Digital signature: Cole Williams Software Limited. SHA256: 476f6d908fc705ed0db4bd1eb85ae208328496f1faa2bb2bdf85894a4f62547a. Verify the installer via Properties → Digital Signatures.

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