3ivx MPEG-4 5.0.4

The 5.0.4 build dates from September 2013 and is the last release the developer ever shipped.

It still installs on modern Windows, but for almost every scenario the page below covers, a free and actively maintained alternative will serve you better.

In the mid-2000s, 3ivx was one of three serious MPEG-4 ASP implementations competing alongside DivX and Xvid. It shipped as a single installer covering video decoding, AAC audio decoding, an MP4 splitter and muxer, and a QuickTime integration layer - which made it popular with users encoding home video archives, podcasts, and CD-ROM collections in the years before H.264 took over the format wars.

Most people who land on this page in 2026 are trying to play a file that was encoded with 3ivx years ago and now refuses to open in their current player.

That use case is real, but the answer is almost never "install the original 3ivx codec".

What is wrong with installing 3ivx today

The 3ivx 5.0.4 release is from September 18, 2013. It targets Windows 7 as its newest officially supported operating system. It is shareware - the trial expires, the installer prompts for a paid licence, and the parent company has not pushed a new build, fixed a bug, or updated its registration infrastructure in over a decade.

User reviews on this page document the recurring pattern: install, run for a month, hit the trial wall, uninstall, scrub the registry, reinstall to reset the trial - which is exactly what you would expect from abandoned shareware that nobody is maintaining.

It still installs and decodes on Windows 10 and 11, but it earns nothing over the modern alternatives below, all of which are free, actively developed, and built for current Windows versions.

What to install instead

For nearly all 3ivx scenarios, LAV Filters is the right replacement. It is the de facto standard DirectShow decoder set on Windows, built on the FFmpeg libraries, and it covers MPEG-4 ASP playback alongside H.264, HEVC, VP9, AV1, and every container 3ivx ever handled - MP4, MOV, AVI, and Matroska included. Installation takes under a minute and there is no trial wall to hit.

If you want a single installer that configures the entire DirectShow stack - decoder, splitter, subtitle filter, and a preconfigured player - the K-Lite Codec Pack bundles LAV Filters together with MPC-HC, DirectVobSub, and the MPC Video Renderer in one download.

The K-Lite Mega Codec Pack extends that bundle with encoding tools, FFDShow processing options, and madVR for users who want the full toolkit. For a slimmer, 64-bit-only alternative built specifically for Windows 10 and 11, the X Codec Pack 3.0 trims the component list to the six filters that actually matter on current systems.

For users who prefer a standalone player that ignores system codecs entirely, VLC Media Player plays 3ivx-encoded files out of the box using its own internal decoders. Drop the file on the window and it plays - no codec installation required. The same applies to MPC-BE, PotPlayer, and mpv Player, all of which ship with built-in MPEG-4 ASP support.

If your file was specifically encoded with 3ivx

The original 3ivx codec wrote MPEG-4 ASP bitstreams that are functionally identical to what Xvid and DivX 11 produce.

Modern decoders read them the same way - the difference only matters if you specifically needed 3ivx's QuickTime component layer for an old Adobe Premiere or After Effects workflow. In that narrow case, QuickTime Alternative covers .mov and embedded QuickTime content without requiring Apple's full player, and it actively maintains its DirectShow filter chain.

If you are not sure which codec your file actually uses, drop it on the browser-based Codec Finder - it identifies the exact video, audio, and container formats locally and recommends the right decoder for your setup.

For users diagnosing broader playback failures, the Codec Troubleshooter walks through the common causes step by step before you install anything.

When the original installer is still the answer

There are two narrow scenarios where the 3ivx 5.0.4 download below is the right choice rather than a modern alternative.

The first is preservation work on systems running Windows XP or Vista where the original 3ivx DirectShow filters were registered as part of an older capture or encoding pipeline that you cannot rebuild.

The second is reproducing a specific legacy QuickTime integration that depended on 3ivx's component handlers - a use case mostly seen in archived broadcast and education content from 2005 to 2010.

For everything else, install LAV Filters or VLC Media Player and skip the trial-wall reinstallation cycle entirely.

What 3ivx 5.0.4 included

The final 5.0.4 build shipped with the 3ivx DirectShow MPEG-4 Video Decoder and Encoder, the matching Audio Decoder and Encoder, a Media Splitter and Muxer, a Video for Windows (VfW) codec, and a QuickTime MPEG-4 Video codec.

The 5.0.4 changelog added Windows 7 compatibility, introduced a new frame resource and reference manager in the core, and fixed a bug that prevented correct CTTS MP4 playback in the QuickTime component. That was the last code change shipped under the 3ivx name.

Browse the full Video Codecs catalogue for current MPEG-4, H.264, HEVC, and AV1 decoders that are still under active development.