EAPQEC.DLL Informations - Download and Fix

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

EAPQEC.DLL file Microsoft EAP NAP Enforcement Client. 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 EAPQEC.DLL related errors on your device. You can also download EAPQEC.DLL file compatible with Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP

File info

General information
File extension DLL
Description Microsoft EAP NAP Enforcement Client
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 EAPQEC.DLL file. EAPQEC.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 EAPQEC.DLL file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to EAPQEC.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 EAPQEC.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.

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

The last solution is to manually download and replace EAPQEC.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 EAPQEC.DLL file.

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

  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows Vista: C:\Windows\System32\
  • Windows Vista: C:\Windows\System32\
  • Windows XP: ---

If the steps did not solve your EAPQEC.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

System Windows 8.1
File size 73216 bytes
Date 2014-11-21
File details
MD5 7266daaf63aaeaa4396d9141765a63b9
SHA1 950596ce98b4d5ed39cb1c2b0ee5ef63244c738b
SHA256 6d22085c27fd7eb90020d2eba9e1ec22feee213628c762f06ffa7469558b5144
CRC32 987004b7
Example file location C:\Windows\System32\
System Windows 8
File size 71680 bytes
Date 2012-07-26
File details
MD5 dc3f767e5bc8f3e5aefc5b893ea0b813
SHA1 a99df49f73baf6d17a1206756a7b21a1a3a36cb7
SHA256 d3b317228f4b140c937cdc6d5a43c5e4abd955947e34a6c14ef4b173d8d7dcd2
CRC32 c86f2155
Example file location 1: C:\Windows\System32\
System Windows 7
File size 72704 bytes
Date -0001-11-30
File details
MD5 9fa14ffc9150b48c5d582dcf6a79d6f2
SHA1 ca63ca3db73239db60409edfebb63b108b17aa9d
SHA256 d80a1c65430ab4e918d321cf62d532b08aa721a1d47533cf00b5df7851e21e93
CRC32 52e72281
Example file location C:\Windows\SysWOW64\
System Windows 7
File size 91648 bytes
Date 2009-07-14
File details
MD5 b07f39f281a1a1decd4b8e2f1bb46299
SHA1 2537ec0b91909457ccc250ecb87b20b356d64366
SHA256 9d4b91df35714cbfc45a74540f208ebe304b7e67b57a06701cbf5c8e935d8b37
CRC32 267e2c9c
Example file location C:\Windows\SysWOW64\
System Windows Vista
File size 67584 bytes
Date -0001-11-30
File details
MD5 7d7960c85e4259f3b90eb4b742616bff
SHA1 78703e5849a34af69460b520e516463ce87c7816
SHA256 ea8efdb038d7f033eb155edec71a857e4bfa4435baf17bcb439f43c8bcd65f95
CRC32 b6cbfd4b
Example file location C:\Windows\System32\
System Windows Vista
File size 86016 bytes
Date 2008-01-21
File details
MD5 b3bb491871e4f3d97f55b89e2d6de497
SHA1 3d4b2199cd6f0f337840a9b2459b17a3b57656d1
SHA256 0773a6ba6f359611f5cad24f06a96ab130852afa0b415c1bcd5907e47b67a44c
CRC32 c3b5ece0
Example file location C:\Windows\System32\
System Windows XP
File size 59392 bytes
Date 2008-04-14
File details
MD5 3b06cdd1a41618944a906589c052f2b3
SHA1 a4d6f34f319d246fe3b87f65d47c651a600f78b2
SHA256 08d2452f0cb6051af0c4e9254d82ac34de336bb0b5f95d9516af7d56e31fd51a
CRC32 afe4ea98
Example file location ---