Troubleshoot DHCPQEC.DLL Errors and Download File

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

DHCPQEC.DLL file Microsoft DHCP 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 DHCPQEC.DLL related errors on your device. You can also download DHCPQEC.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 DHCP 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 DHCPQEC.DLL file. DHCPQEC.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 DHCPQEC.DLL file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to DHCPQEC.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 DHCPQEC.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of DHCPQEC.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 DHCPQEC.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 77312 bytes
Date 2014-11-21
File details
MD5 a25f41617ec7baadc56ecdbff88105ac
SHA1 cb921a19ed7de82b83a46af4606a32876801c0d6
SHA256 dd80e69590a2d3e689702c4ba898d69fcb525b072518050f2e884596937d2115
CRC32 a889bd3a
Example file location C:\Windows\System32\
System Windows 8
File size 74752 bytes
Date 2012-07-26
File details
MD5 11f6b750e456f75d8edf1f780ad07be3
SHA1 c20b857508f565809a9fa938e8f4cb6685e917f9
SHA256 072a0126ba49159ac924f855aa459d2aaaf248ecaa596d41985f34de4b2d9215
CRC32 44d9632f
Example file location 1: C:\Windows\System32\
System Windows 7
File size 81920 bytes
Date -0001-11-30
File details
MD5 2765b91a9ee086c20b451e80d2709cc9
SHA1 1dddc4981b2deb698edd1609c3d995b09f00288c
SHA256 bff8dfc9211e6c0114939f94a7080ea385fed93d16cd94602ca9c1b70dbc2634
CRC32 f23faebb
Example file location C:\Windows\SysWOW64\
System Windows 7
File size 101888 bytes
Date 2009-07-14
File details
MD5 cb06d9edb2a0c225c25a3b33bedf4dd7
SHA1 c4af0fb67bf67c22db17481726061903617b9f25
SHA256 fe53b282b0d0c2e33093bfbf4c65fdf7e943e7c94ffce8c6a586518b9fd04d79
CRC32 23eb9804
Example file location C:\Windows\SysWOW64\
System Windows Vista
File size 80384 bytes
Date 2008-01-21
File details
MD5 1cee935887207ff03fb3b5aed78770cf
SHA1 43fab66d91e985353acd8d46d7bef2df3db4e43d
SHA256 8f24c54372e477f51f482f8d211a87b85de8a4e052a668f90621df540002f58d
CRC32 5e827780
Example file location C:\Windows\System32\
System Windows Vista
File size 66048 bytes
Date -0001-11-30
File details
MD5 faf3d589c7e28315ebfcdfa4ee9c610e
SHA1 5975036b3665d022b59affb2e359eb2f09c9e25e
SHA256 95a2a89af889afea81c265dd8d1e42d85d99441c24fcd419b700d6596f5f4be6
CRC32 4fbaa31c
Example file location C:\Windows\System32\
System Windows XP
File size 48640 bytes
Date 2008-04-14
File details
MD5 11a9e0581f6441876ffbf331d294c10a
SHA1 d66a8413eea08694c1e08b002599ce341681f67b
SHA256 22ecbaf9a9e7563249ef63360574f905509992aecbba609b8bb7ea2009195506
CRC32 d16e653c
Example file location ---