eappcfg.dll - Repair Issues and Download

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

eappcfg.dll file Eap Peer Config. 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 eappcfg.dll related errors on your device. You can also download eappcfg.dll file compatible with Windows 10, 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 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP

File info

General information
Filename eappcfg.dll
File extension DLL
Description Eap Peer Config
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 eappcfg.dll file. eappcfg.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 eappcfg.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to eappcfg.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 eappcfg.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of eappcfg.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: ---
  • Windows XP: ---

If the steps did not solve your eappcfg.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 eappcfg.dll
System Windows 10
File size 196096 bytes
Date 2017-03-18
File details
MD5 5e1cb3e06bba17a4556f4782c962e25d
SHA1 3ea6fe294326ef2b18a56497f8256db53bb704cf
SHA256 ef6f6ca1697de7c17412dcfca0c3f5a6448b9e6f14acb7368f1ec13b795ea5d3
CRC32 373a4795
Example file location C:\Windows\System32\
Filename eappcfg.dll
System Windows 8.1
File size 278016 bytes
Date 2014-11-21
File details
MD5 f66f44cb775b90850b9cc0627ad5e7cd
SHA1 93e6f7272255dcbfd895c33e7d1fe6604097f3e7
SHA256 a2703b3baeeedc7136b4bc57d6e3a1efe99adf724a541db5635ba8e33ab61ed7
CRC32 a8ba462f
Example file location C:\Windows\System32\
Filename eappcfg.dll
System Windows 8
File size 256512 bytes
Date 2012-07-26
File details
MD5 1914e68a5573f947e4c8e655a9475305
SHA1 3c6423e1f85fe0e1306d47f55ce123ad60095a46
SHA256 5ca6148c6c9d3f1e1f96a7b6f3d442c3fe51fed187fa44aba826a92371ec3972
CRC32 8c685e88
Example file location 1: C:\Windows\System32\
Filename eappcfg.dll
System Windows 7
File size 263680 bytes
Date 2009-07-14
File details
MD5 0d753307d274f3688bd21c377b616700
SHA1 afc02673073a96b73b56af335808cf102ee06d1a
SHA256 5dd08e77a11f2561fb96ba212fddfe21d4394c69c34c3eb88f7f5cd068ee55bf
CRC32 2fe0ae86
Example file location C:\Windows\System32\
Filename eappcfg.dll
System Windows 7
File size 183296 bytes
Date -0001-11-30
File details
MD5 5a5feddf02588b8f9fe4a95e5e7eae97
SHA1 78fad30bb8d9784cd029bf150583fd39e04c53db
SHA256 364a2dc446e9ab091a216d0eed559cea334aa46ec0bc693cbd6ce1de0f89317b
CRC32 abec4ba0
Example file location C:\Windows\System32\
Filename eappcfg.dll
System Windows Vista
File size 211456 bytes
Date 2009-04-11
File details
MD5 03fded7449428ce493432ee35fe5a2fb
SHA1 07c947df5559399b8b8920003c0983b76ea32cab
SHA256 97645ae40facc5f5d75da582e19ce5278977c798809e7e87f594decbeed5ae11
CRC32 1f80ebc3
Example file location ---
Filename eappcfg.dll
System Windows Vista
File size 135680 bytes
Date -0001-11-30
File details
MD5 5d0fe613570cabe3992f7dbcd68e61d1
SHA1 308d6580ad758bbce5fd6853888b6e99bca85432
SHA256 68a6d6da722e9a5120de240194f9682acbb485cebdd8a6a099ae0e76359302b9
CRC32 7beec7e0
Example file location ---
Filename eappcfg.dll
System Windows XP
File size 126976 bytes
Date 2008-04-14
File details
MD5 5db625e7d095604010cf84de2d8acfa6
SHA1 16c7ef237d2962d8d6b7e1599651e9df487a0bd0
SHA256 deed8055cd1f2e2d898c5c77283b56078414cc7d9fca6fcf58ba0b66b565e826
CRC32 85315273
Example file location ---