MMDevAPI.dll download

MMDevice API

Since you decided to visit this page, chances are you’re either looking for mmdevapi.dll file, or a way to fix the “mmdevapi.dll is missing” error. Look through the information below, which explains how to resolve your issue. On this page, you can download the mmdevapi.dll file as well.

What is MMDevAPI.dll?

MMDevAPI.dll a DLL (Dynamic Link Library) file, developed by Microsoft, which is referred to essential system files of the Windows OS. It usually contains a set of procedures and driver functions, which may be applied by Windows.

What is MMDevAPI.dll used for?

MMDevAPI.dll file, also known as MMDevice API, is commonly associated with Microsoft® Windows® Operating System. It is an essential component, which ensures that Windows programs operate properly. Thus, if the mmdevapi.dll file is missing, it may negatively affect the work of the associated software.

What is MMDevAPI.dll is missing error mean?

There are multiple reasons that may cause mmdevapi.dll errors. These include Windows registry issues, malicious software, faulty applications, etc.

Error messages related to the mmdevapi.dll file can also indicate that the file has been incorrectly installed, corrupted or removed.

Other common mmdevapi.dll errors include:

  • “mmdevapi.dll is missing”
  • “mmdevapi.dll error loading”
  • “mmdevapi.dll crash”
  • “mmdevapi.dll was not found”
  • “mmdevapi.dll could not be located”
  • “mmdevapi.dll Access Violation”
  • “The procedure entry point mmdevapi.dll error”
  • “Cannot find mmdevapi.dll”
  • “Cannot register mmdevapi.dll”
mmdevapi.dll - System Error The program can`t start because mmdevapi.dll is missing from your computer. Try reinstalling the program to fix problem.

How to fix MMDevAPI.dll missing error?

If the “mmdevapi.dll is missing” error occurs, you may use one of the methods below – manual or automatic – to solve the problem. The manual method assumes that you download the mmdevapi.dll file and put it inside the game/application installation folder, while the second method is much easier as it allows you to automatically fix the error with minimum effort.

Method 1: Download MMDevAPI.dll

Search through available versions of mmdevapi.dll from the list below, select the correct file and press the “Download” link. If you cannot decide which version to choose, read the article below or use the automatic method to resolve the issue

MMDevAPI.dll, 9 available versions

Bits & Version File size Language Description Checksums
32bit 6.3.9600.17031 289.5 KB U.S. English MMDevice API
MD5 7ec611582cf2124499a28946aeebc3b4
SHA1 b297b72958a2526ddeccd14e3d9be5e60378a12a
32bit 6.2.9200.16420 300.0 KB U.S. English MMDevice API
MD5 3126a761946adc65c6ba511971ef033d
SHA1 c23268ff781529e2ffadf86c8dd2588b38b87763
32bit 6.1.7601.17514 208.5 KB U.S. English MMDevice API
MD5 243974ec02f7ae49e4179c54624143ab
SHA1 53ae0a94f99fef553e45f45d9d10080ba455c926
32bit 6.0.6001.18000 146.0 KB U.S. English MMDevice API
MD5 3040d9df36ae94db309726400582e02f
SHA1 9145e692024b2bd89188b2fdb595b7d2ff915384
64bit 6.0.6001.18000 197.5 KB U.S. English MMDevice API
MD5 785ee936d7be6ac2547b903f8e408a27
SHA1 034468edfa6b70015ebc28ede413b4060bc54bea
64bit 10.0.14393.0 433.3 KB U.S. English MMDevice API
MD5 d2f15faad2f3cdd54c7de842b24e1a2a
SHA1 4d38f9ebf208ea55c1051a115ccd2af2fc4d90bd
32bit 10.0.14393.0 344.5 KB U.S. English MMDevice API
MD5 dd8eac114e86965fcd82552f889ed23a
SHA1 bcbaa910970a6247821965ff04f60133684ca048
64bit 10.0.10586.0 429.8 KB U.S. English MMDevice API
MD5 937cca377566a4e3e55d3a4885e20f02
SHA1 4353c0a0e0127e5d8db9df4b9dafbd24b97099da
32bit 10.0.10586.0 331.4 KB U.S. English MMDevice API
MD5 0fa12d8a749a220b4b87e8d59d379291
SHA1 d1e7b8aff12d0cf674931a3fc963162285bb917f

How to choose the correct version of MMDevAPI.dll?

First, look through descriptions in the table above and select the proper file for your program. Pay attention to whether it’s a 64-, or 32-bit file, as well as the language it uses. For 64-bit programs, use 64-bit files if they are listed above.

It’s best to choose those dll files which language corresponds to the language of your program, if possible. We also recommend downloading the latest versions of dll files for an up-to-date functionality.

Where to place the MMDevAPI.dll file?

To repair the “mmdevapi.dll is missing” error, put the file inside the application/game installation folder. Alternatively, you can place the mmdevapi.dll file within the Windows system directory.

How to register MMDevAPI.dll?

If putting the missing mmdevapi.dll file into the proper directory doesn’t solve the problem, you’ll have to register it. To do so, copy your DLL file to the C:\Windows\System32 folder, and open a command prompt with admin rights. There, type “regsvr32 mmdevapi.dll” and press Enter.

Method 2: Fix the missing MMDevAPI.dll error automatically

With WikiDll Fixer you can automatically repair mmdevapi.dll errors. The utility will not only download the correct version of mmdevapi.dll for absolutely free and suggest the right directory to install it but also resolve other issues related to the mmdevapi.dll file.
  • Step 1: Click the “Download App. ” button to get an automatic tool, provided by WikiDll.
  • Special offer. See more information about Outbyte and unistall instrustions. Please review Outbyte EULA and Privacy Policy

  • Step 2: Install the utility by following simple installation instructions.
  • Step 3: Launch the program to fix your mmdevapi.dll errors and other issues.

special offer


See more information about Outbyte and unistall instrustions. Please review Outbyte EULA and Privacy Policy

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: windows-versions

Limitations: trial version offers an unlimited number of scans, backup, restore of your windows registry for FREE. Full version must be purchased.

Method 3: Fix MMDevAPI.dll missing error with System File Checker (SFC)

Many users are familiar with the sfc / scannow system file integrity check command, which automatically checks and fixes protected Windows system files. To execute this command, you have to run command prompt as administrator.
  • Step 1: Start the command line as an administrator in Windows by pressing Win key on your keyboard and typing "Command Prompt" in the search field, then - right-click on the result and select Run as administrator. Alternatively, you can press Win + X key combination which will open the menu where you can select Command Prompt (Admin).
  • Step 2: Type sfc / scannow while in Command Prompt and hit Enter.

After entering the command, a system check will begin. It will take a while, so please be patient. Once operation is complete you will get the message “Windows Resource Protection found corrupt files and successfully repaired them.” or “Windows Resource Protection found corrupt files but was unable to fix some of them”.

Keep in mind that System File Checker (SFC) cannot fix integrity errors for those system files that are currently being used by operating system. To fix these files you have to run SFC command through the command prompt in the Windows recovery environment. You can get into Windows Recovery Environment from the login screen, by clicking Shutdown, then holding down the Shift key while selecting Restart.

In Windows 10, you can press Win key, select Settings > Update & security > Recovery and under Advanced Startup, click Restart now. You can also boot from the installation disk or bootable USB flash drive with the Windows 10 distribution. On the installation screen select your preferred language and then select “System Restore”. After that, go to “Troubleshooting” > “Advanced Settings” > “Command Prompt”. Once in Command Prompt type the following command: sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows where C is the partition with the installed operating system, and C: \ Windows is the path to the Windows 10 folder.

This operation will take a while and it is important to wait until it is complete. When finished, close the command prompt and restart the computer as usual.

Method 4: Fix corrupted MMDevAPI.dll file by performing System Restore

System Restore is very useful when you want to fix mmdevapi.dll error. Using the "System Restore" function, you can choose restore Windows to the date when the mmdevapi.dll file was not damaged. Thus, restoring Windows to an earlier date cancels changes made to system files. Please follow the steps below to roll back Windows using System Restore and get rid of mmdevapi.dll error.
  • Step 1: Press the Win + R keys combination to launch Run dialog.
  • Step 2: Type rstrui in the Run text box and click OK or hit Enter. It will open the system recovery utility.
  • Step 3: The “System Restore” window may include the “Choose a different restore point” option. If so, select this option and click Next. Check the “Show more restore points” checkbox to see a complete list of dates.
  • Step 4: Select a date to restore Windows 10. Keep in mind that you need to select a recovery point that will restore Windows to the date when the mmdevapi.dll error message did not appear.
  • Step 5: Click the "Next" button and then click "Finish" to confirm your restore point.

At this point, your computer will reboot normally and boot up with restored version of Windows, and mmdevapi.dll error should be resolved.

Method 5: Scan your PC for malware to fix mmdevapi.dll error

Sometimes mmdevapi.dll error can happen because of malware on your computer. The malicious software can intentionally corrupt DLL files in order to substitute them with its own malicious files. Therefore, your number one priority should be to scan your computer for malware and eliminate it as soon as possible.

OPTION 1 - Windows Defender

The new version of Windows 10 has a built-in application called "Windows Defender", which allows you to check your computer for viruses and remove malware, which is difficult to remove in a running operating system. In order to use the Windows Defender Offline scan, go to the settings (Start - Gear icon or Win + I key), select "Update and Security" and go to the "Windows Defender" section.
How to use Windows Defender Offline Scan
  • Step 1: Press Win key or click on Start and click on Gear icon. Alternatively press Win + I key combination.
  • Step 2: Select Update and Security option and go to Windows Defender section.
  • Step 3: At the bottom of the defender settings there is the checkbox " Windows Defender Offline scan". To start it, click "Scan Now". Note that you have to save all unsaved data before rebooting your PC.

After clicking “Scan Now” burton, the computer will reboot and automatically start searching viruses and malware. Upon completion of the scan, the computer will restart, and in the notifications, you will see a report on the completed scan.

OPTION 2 - Malwarebytes

Malwarebytes products are one of the most popular and effective to fight malware and unwanted programs, and they will come in handy even when you have a high-quality third-party antivirus installed. Scanning in the new version of Malwarebytes can be performed in real time and manually. To initiate manual scan please follow the steps below:
  • Step 1: Launch the Malwarebytes program and click Scan Now button. Also, you can select Scan option on the left side of the program’s window and click Full Scan. The system will begin scanning and you will be able to see the scan results.
  • Step 2: Select items that you want to quarantine and press “Quarantine Selected” button. When quarantined, you may be prompted to reboot the computer.
  • Step 3: After the program has been restarted, you can delete all quarantined objects by going to the appropriate section of the program or restore some of them if it turned out that after quarantining something from your software began to work incorrectly.

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