dnscmmc.dll - Repair Issues and Download

Sometimes Windows system displays error messages regarding corrupted or missing dnscmmc.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 dnscmmc.dll file can therefore effect in failed execution of the started process.

dnscmmc.dll file DNS Client MMC Snap-in DLL. 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 dnscmmc.dll related errors on your device. You can also download dnscmmc.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7 devices which will (most probably) allow you to solve the problem.

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

File info

General information
Filename dnscmmc.dll
File extension DLL
Description DNS Client MMC Snap-in DLL
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
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.)

There are various types of errors related to dnscmmc.dll file. dnscmmc.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 dnscmmc.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to dnscmmc.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 dnscmmc.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.

dnscmmc.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

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with dnscmmc.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.

Windows Update

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

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. 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 dnscmmc.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

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 dnscmmc.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the dnscmmc.dll file with properly working version. To use the tool:

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

Step 4: Restoring Windows system

Windows Recovery

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

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

If all the above-mentioned methods failed and the dnscmmc.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 dnscmmc.dll file

The last solution is to manually download and replace dnscmmc.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 dnscmmc.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of dnscmmc.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\

If the steps did not solve your dnscmmc.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 dnscmmc.dll
System Windows 10
File size 124928 bytes
Date 2017-03-18
File details
MD5 451b07248701923a981f6ee1383e7864
SHA1 fa2025a8f30ebb8f19f3b2a595c9fe8c0ef4d822
SHA256 71b2050d503bdcfcb0a4bfae85839ec4279af447783b5c3fd14f296a10b268de
CRC32 c0e80098
Example file location C:\Windows\System32\
Filename dnscmmc.dll
System Windows 8.1
File size 129536 bytes
Date 2013-08-22
File details
MD5 f7570e166da2230b23df13c715243edc
SHA1 45b640f9f2616941e381609cc5f7a794abaea947
SHA256 fea0231d76fea72c74dbc045136910deaca5e78db55c8de7efd47436d8bd83f7
CRC32 d4e5c9ec
Example file location C:\Windows\System32\
Filename dnscmmc.dll
System Windows 8
File size 129024 bytes
Date 2012-07-26
File details
MD5 14936ae71ba20eb44977653542a9d92e
SHA1 623ad1747e22c93920bda4b1a002877ddaaad4a0
SHA256 64fb4b40d1abd11afe21b24cbf2e2739ff5c0687734a6ac2fc9eda5106db3e1b
CRC32 5d3945cd
Example file location 1: C:\Windows\System32\
Filename dnscmmc.dll
System Windows 7
File size 118272 bytes
Date 2010-11-21
File details
MD5 7881a5557cd9a9d40d994a57d24001ab
SHA1 e86f3542738e19d491e0cc66359b291387e89e74
SHA256 d4f471f4e7fd3b5e5e7c69b40da90f2be075a0951b488454de826437d8d30fdb
CRC32 cc76eaee
Example file location C:\Windows\System32\
Filename dnscmmc.dll
System Windows 7
File size 109056 bytes
Date -0001-11-30
File details
MD5 7dc1fabd139b6ae5743c5df75eec5958
SHA1 809d271ffe25d1704d33548692d89b8b13183de4
SHA256 8aa4b7f3d439d1409b0b435d1384cd6b66a48b740df8a05d280d8c06e19f5a13
CRC32 17498b37
Example file location C:\Windows\System32\