MFC120D.DLL Download & Fix Errors

What is "mfc120d.dll"?

"mfc120d.dll" stands for Microsoft Foundation Class Library version 12.0 Debug. It is a system file used primarily in the development of Windows applications using the Microsoft Visual Studio integrated development environment (IDE). This DLL is specifically intended for debugging purposes, used by software developers to test and debug their applications.

Location

The "mfc120d.dll" file is usually found in the installation directory of the application that requires it, or within the development environment's directory. Common paths include:

• C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin
• C:\Windows\System32
• C:\Windows\SysWOW64

Publisher

This DLL file is published by Microsoft Corporation as part of its Visual Studio suite.

Importance and Deletion

The "mfc120d.dll" file is crucial for developers who are debugging applications in Visual Studio. For end-users, this file typically isn't necessary unless they are running a debug version of a software application. It can generally be deleted without impacting the system; however, doing so may prevent certain debug applications from running correctly.

Common Issues or Security Concerns

• Applications may fail to start or function if the DLL is missing or corrupted.
• Security concerns are minimal as this is a legitimate Microsoft file, but like any DLL, it could potentially be targeted by malware or replaced with a malicious version.

How to Fix 'mfc120d.dll is missing' Errors

1. Verify that the application requiring the DLL is properly installed.
2. Reinstall the Microsoft Visual C++ Redistributable package for Visual Studio 2013, which may include the necessary DLLs.
3. Check your Recycle Bin for the deleted DLL and restore it if found.
4. Run the System File Checker tool (sfc /scannow) to replace missing or corrupted system files.
5. Consider temporarily disabling antivirus software to ensure it isn't mistakenly quarantining the DLL.