mp43.dll: download the file and fix the error

32-bit (x86) MPEG-4 v3 Video Codec Scanned by antivirus

mp43.dll is a file of the software MPEG-4 v3 Video Codec (“MPEG-4 v3 Video Codec”), published by Wolf. Version offered here: 4.1.00.3920, 32-bit.

If this file is missing or damaged, the program that uses it does not start and Windows displays an error message. Two methods can fix the error, below.

Method 1 · quick · about 1 minute

Download only mp43.dll

Ideal if only this file is reported missing: you replace a single file, without reinstalling anything.

⇓ Download mp43.dll .zip file: the DLL + its instructions · downloaded 2,494 times

Version: 4.1.00.3920
Architecture: 32-bit (x86)
Size: 413.76 KB
Publisher: Wolf

Then:

Extract mp43.dll from the zip file and copy it to the folder of the program showing the error (where its .exe file is).
Still getting the error? Copy it to C:\Windows\SysWOW64 (64-bit Windows) or C:\Windows\System32 (32-bit Windows), then restart.

SHA-256: 66e5d6ddc938376cf8088c530aa07da5464c5c76fe5db7d836b6dc715e3fe890 · Check on VirusTotal · Product: MPEG-4 v3 Video Codec

Method 2 ·complete · depends on the program

Reinstall the program that shows the error

The program normally provides mp43.dll itself, in the exact version it expects. Recommended if several files are missing or if the error comes back.

Settings › Apps › Installed apps: uninstall the program or game concerned.
Reinstall it from its original setup program, then restart your computer.

Error messages related to mp43.dll

The program can't start because mp43.dll is missing.
Error loading mp43.dll. The specified module could not be found.
Failed to load mp43.dll

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