Download and Fix MMDevAPI.dll

Sometimes Windows system displays error messages regarding corrupted or missing MMDevAPI.dll files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent MMDevAPI.dll file can therefore effect in failed execution of the started process.

MMDevAPI.dll file MMDevice API. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of MMDevAPI.dll related errors on your device. You can also download MMDevAPI.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista

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Fix MMDevAPI.dll errors

1 Information about MMDevAPI.dll file
2 Errors related to MMDevAPI.dll file
3 How to fix MMDevAPI.dll related errors?

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download MMDevAPI.dll

4.1 List of MMDevAPI.dll file versions

File info

General information
Filename	MMDevAPI.dll
File extension	DLL
Description	MMDevice API

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Dynamic link library
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common MMDevAPI.dll file related problems

There are various types of errors related to MMDevAPI.dll file. MMDevAPI.dll file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to MMDevAPI.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

MMDevAPI.dll is corrupted
MMDevAPI.dll cannot be located
Runtime Error - MMDevAPI.dll
MMDevAPI.dll file error
MMDevAPI.dll file cannot be loaded. Module was not found
cannot register MMDevAPI.dll file:
MMDevAPI.dll file could not be loaded
MMDevAPI.dll file doesn't exist

MMDevAPI.dll

Application could not be started because MMDevAPI.dll file is missing. Reinstall the application to solve the problem.

Problems related to MMDevAPI.dll can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing MMDevAPI.dll file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix MMDevAPI.dll errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

MMDevAPI.dll file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with MMDevAPI.dll file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to MMDevAPI.dll file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of MMDevAPI.dll or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to MMDevAPI.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the MMDevAPI.dll file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the MMDevAPI.dll file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the MMDevAPI.dll file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace MMDevAPI.dll file

The last solution is to manually download and replace MMDevAPI.dll file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded MMDevAPI.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of MMDevAPI.dll file example directory paths.

Windows 10: C:\Windows\System32\
Windows 8.1: C:\Windows\System32\
Windows 8: 1: C:\Windows\System32\
Windows 7: C:\Windows\System32\
Windows 7: C:\Windows\System32\
Windows Vista: ---
Windows Vista: ---

If the steps did not solve your MMDevAPI.dll file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename MMDevAPI.dll

System Windows 10

File size 356992 bytes

Date 2017-03-18

Download

File details
	MD5	e5cb9008da742c279762b437326d1e20
	SHA1	a4abde855545a031422c488ef1f27d2b464141a1
	SHA256	419cc784568058a85d862a623c3f64ba3b2507e58e19f42fef0d8840d6eda7c4
	CRC32	28d8a4d1
	Example file location	C:\Windows\System32\

Filename MMDevAPI.dll

System Windows 8.1

File size 331048 bytes

Date 2014-11-21

Download

File details
	MD5	d12f7cf48c4035d6fcff161e5eeba6cc
	SHA1	b2999f21f87e454fd38711c8cc45e3a108b981be
	SHA256	7711ce247f5f8a2714a716686798dd79962f474460747ff875d5b21989d82b97
	CRC32	c3fbea02
	Example file location	C:\Windows\System32\

Filename MMDevAPI.dll

System Windows 8

File size 307200 bytes

Date 2012-07-26

Download

File details
	MD5	11311b3511422499b76f45bcd20605b8
	SHA1	b4e836c6ae71fd4ee1570979a9e18f5d5403eb18
	SHA256	ae170ad06022b5cbddc9b7a6eb680ddb63fcbd1cccab804a3ac6daec322eeecb
	CRC32	c5255fd2
	Example file location	1: C:\Windows\System32\

Filename MMDevAPI.dll

System Windows 7

File size 284160 bytes

Date -0001-11-30

Download

File details
	MD5	227e2c382a1e02f8d4965e664d3bbe43
	SHA1	c4971ba9c1e4fdf0106c7cfab626a3d8737bbd07
	SHA256	1cff20a8bf87ace4fa4935ebeed72bfb1a1fe902a754899e2f50798d67df5642
	CRC32	e68adb15
	Example file location	C:\Windows\System32\

Filename MMDevAPI.dll

System Windows 7

File size 213504 bytes

Date -0001-11-30

Download

File details
	MD5	243974ec02f7ae49e4179c54624143ab
	SHA1	53ae0a94f99fef553e45f45d9d10080ba455c926
	SHA256	755fa67f7bf10e3c6336788d297fbaa70f28f630852a43a78d3f7d7e3a7eced0
	CRC32	70e8b567
	Example file location	C:\Windows\System32\

Filename MMDevAPI.dll

System Windows Vista

File size 203776 bytes

Date 2009-04-11

Download

File details
	MD5	303c4eb5c2fb40f194e2b24cad7148ef
	SHA1	9994541883f76cf0d34ed453de7648108ed4f474
	SHA256	72dfd0b7c7611859ea80d466e9ea735ce63bd4af2f2570766d16211e7a65c579
	CRC32	a029ce4a
	Example file location	---

Filename MMDevAPI.dll

System Windows Vista

File size 150528 bytes

Date -0001-11-30

Download

File details
	MD5	56b5914070b2c243dfb3d186070da89d
	SHA1	5a32331ecd29b5de4c67e1bea946187548e5ad32
	SHA256	657ebc48f8ae297f76898c5417797c3542b086c40f84d32f7d76fa14893b2c08
	CRC32	55020de8
	Example file location	---