mfc42.dll: download the file and fix the error

32-bit (x86) Windows system file Scanned by antivirus

mfc42.dll is a Windows system file, installed and updated by Windows itself. Its official description: “MFCDLL Shared Library - Retail Version”, by Microsoft Corporation.

If it is missing or damaged, Windows displays for example: “The program can't start because mfc42.dll is missing from your computer.” Two methods can fix the error, below.

Method 1 · quick · about 1 minute

Download only mfc42.dll

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

⇓ Download mfc42.dll .zip file: the DLL + its instructions · downloaded 5,255 times

Version: 6.02.4131.0
Architecture: 32-bit (x86)
Size: 1.03 MB
Publisher: Microsoft Corporation

Then:

Extract mfc42.dll from the zip file and copy it to the folder of the program showing the error (where its .exe file is).

System file: copy it only to the folder of the program that shows the error. Never replace the version in C:\Windows; if the error persists, use method 2.

SHA-256: 169f4c91bf3dfa9a2b955ea4516d424608291baaff44d6103d8e80a6bf7990d1 · Check on VirusTotal · Product: Microsoft (R) Visual C++

Method 2 ·complete · official method · 15 to 30 minutes

Repair Windows files (SFC and DISM)

Windows can check and replace its own missing or damaged system files with the official DISM and SFC tools.

Microsoft: System File Checker tool

Open a Command Prompt as administrator: Start menu, type cmd, right-click › Run as administrator.
Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter, wait until it finishes, then type sfc /scannow and press Enter.
Restart your computer, then install the updates offered by Windows Update.

Complete guide: Missing Windows system DLL

Error messages related to mfc42.dll

The program can't start because mfc42.dll is missing.
Error loading mfc42.dll. The specified module could not be found.
Failed to load mfc42.dll

Why does this error occur?

The program expects another version of the file (old program, or designed for another version of Windows).
Damaged system file: crash, power cut, failing disk.
Malware or antivirus that modified or deleted the file.

Other Windows system files

KERNEL32.dll User32.dll XInput1_4.dll comctl32.dll d3d11.dll d3d9.dll dxgi.dll msvcrt.dll shell32.dll winmm.dll

Frequently asked questions

Should I copy mfc42.dll to C:\Windows\System32?

No: replacing a system file with another version can prevent Windows from starting. Only copy it to the program’s folder, or repair Windows with SFC and DISM.