Download dnshc.dll to Fix Errors

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

dnshc.dll file DNS Helper Class. 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 dnshc.dll related errors on your device. You can also download dnshc.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows Vista 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 Vista, Windows Vista

File info

General information
Filename dnshc.dll
File extension DLL
Description DNS Helper Class
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 dnshc.dll file. dnshc.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 dnshc.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to dnshc.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 dnshc.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.

dnshc.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 dnshc.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 dnshc.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 dnshc.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 dnshc.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the dnshc.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 dnshc.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 dnshc.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 dnshc.dll file

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of dnshc.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 Vista: C:\Windows\SysWOW64\
  • Windows Vista: C:\Windows\SysWOW64\

If the steps did not solve your dnshc.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 dnshc.dll
System Windows 10
File size 81920 bytes
Date 2017-03-18
File details
MD5 e6557f4cb48c996a54a1d2bbf58af45a
SHA1 654c988b79b1e45f0fa29d3f9410a0a72544dacb
SHA256 8c56b740bb5f16693ae49bccab4c0c208ea95c40dd70a64f3f24771d213e3ff8
CRC32 6468c08a
Example file location C:\Windows\System32\
Filename dnshc.dll
System Windows 8.1
File size 81408 bytes
Date 2014-11-21
File details
MD5 ebf8547ab0f24c533c02acacf9131286
SHA1 518f04b03ce2564a229bb53dcf154e9d2424ba21
SHA256 74d5a574f1eb2423c7a85f4f3c196cb891ac2521a3a9ce99ecbde3ad5523fef6
CRC32 27dd9af5
Example file location C:\Windows\System32\
Filename dnshc.dll
System Windows 8
File size 77824 bytes
Date 2012-07-26
File details
MD5 59f1468be8cbd65d2a87fd7b5482059d
SHA1 3b28fea0cdc4ff7276ccaf3580c54884d37500db
SHA256 1cb8638fa64a2508f46e6782b77b8eb010631f25efaed010b990c77eba509b8a
CRC32 006823de
Example file location 1: C:\Windows\System32\
Filename dnshc.dll
System Windows 7
File size 104960 bytes
Date 2009-07-14
File details
MD5 d898b9c3b9181d6b43e8c64d943bcd33
SHA1 cce5a84d255d9c76a0ce232e17315d3bf8b236f3
SHA256 cf5a091fb8e1164e6ceb6bac47c56c0e67c34167aa4e970e126f2b4695ade7e3
CRC32 140bdc76
Example file location C:\Windows\System32\
Filename dnshc.dll
System Windows Vista
File size 48128 bytes
Date -0001-11-30
File details
MD5 7e2849af13d7133d58877516f58882e2
SHA1 b6f1004a628c1d5382b3a91c377c873adc03b37a
SHA256 e44d325eae6032b841ec74379edacc8a22e15f0b87e07f902a23072fbd42bc5a
CRC32 c0fa2592
Example file location C:\Windows\SysWOW64\
Filename dnshc.dll
System Windows Vista
File size 58368 bytes
Date 2008-01-21
File details
MD5 88a33e674a081de333b3d962eb87d384
SHA1 72370c98c4b558d5cc6ed815cca27c09f3b818ee
SHA256 23e5395a3224c1d3e115f1313aa261be8395f986adcba35b61058d2f9a0a861c
CRC32 e3382122
Example file location C:\Windows\SysWOW64\