cnmui.dll: download the file and fix the error

32-bit (x86) Canon BJ Raster Printer Driver for Windows NT4.0 Scanned by antivirus

cnmui.dll is a file of the software Canon BJ Raster Printer Driver for Windows NT4.0 (“BJ Printer Driver Interface Driver”), published by CANON INC.. Version offered here: 4.40.2.0, 32-bit.

Programs that need it refuse to start, or show an error, when it is missing or damaged. Two methods can fix the error, below.

Method 1 · quick · about 1 minute

Download only cnmui.dll

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

⇓ Download cnmui.dll .zip file: the DLL + its instructions · downloaded 2,146 times

Version: 4.40.2.0
Architecture: 32-bit (x86)
Size: 1.2 MB
Publisher: CANON INC.

Then:

Extract cnmui.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: 40bf4ac1b3d39f3be3438d2a578f1bb4594aadf67deec1b5a5d5fd368c356124 · Check on VirusTotal · Product: Canon BJ Raster Printer Driver for Windows NT4.0

Method 2 · complete · depends on the program

Reinstall the program that shows the error

The program normally provides cnmui.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 cnmui.dll

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

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