Having an Mfc42.dll missing error or other similar errors with this file? In this article I’d like to expand about this file, its functionality, the reasons for having problems with it, as well as about how to repair these problems. Hope that you’ll find it useful.
First of all, this file was created by Microsoft and it is usually located under:
C:Windows\System32. This module is part of Microsoft Foundation Classes (MFC) and it is used for helping software developers by providing them with ready-made codes. Basically, this dll module is widely used by many applications, created using Microsoft Visual C++.
Common known problems
In many cases you might get errors related to this dll when trying to open an application. Errors usually indicate something like dll is missing or not found. It usually won’t let you open that application or it’ll let you open it and use it for a short period of time.
Causes to this error
In most cases, the file has either got corrupted, or it has been replaced by an incompatible file version. Other common causes include incorrect/missing/corrupt file path registration in Windows.
How to repair it…
(1) Use your Windows System File Checker (SFC)
Since this is a system file, let Windows try and repair this problem for you. There’s a simple command line that enables you to tell Windows to scan all your system files for errors. If for instance it’ll find out that Mfc42.dll is either incompatible or corrupt – it’ll immediately replace it with the correct version. (See instructions in the provided link).
If System File Checker didn’t solve the problem…
(2) Detect any Mfc42.dll missing related errors
Simple download this errors scanner. It’ll automatically scan your Windows for file path and file registration errors. By the end of the scan take a look at the errors report – if it has detected any errors related to this dll file, it’ll tell you the source of the error and even enable you to fix it.
Pinpointing problematic registered dll file paths