dssec.dll - Repair Issues and Download

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

dssec.dll file Directory Service Security UI. 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 dssec.dll related errors on your device. You can also download dssec.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 dssec.dll
File extension DLL
Description Directory Service Security UI
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 dssec.dll file. dssec.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 dssec.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to dssec.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 dssec.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of dssec.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\SysWOW64\
  • Windows 7: C:\Windows\SysWOW64\
  • Windows Vista: ---
  • Windows Vista: ---
  • Windows XP: ---

If the steps did not solve your dssec.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 dssec.dll
System Windows 10
File size 48128 bytes
Date 2017-03-18
File details
MD5 3e6ac1a2a69e3696b8f16a3d7eaac642
SHA1 c730a1476cef3e3c1950be9f68eac55d70980edb
SHA256 92900e8cfcb6eda73d0c4243d4ca539a1790f2c72adeeab6d2e196fed80894b1
CRC32 96c77a51
Example file location C:\Windows\System32\
Filename dssec.dll
System Windows 8.1
File size 47616 bytes
Date 2014-11-21
File details
MD5 326b2c49cf84f00b9b42a68a78b8dc10
SHA1 0f026503085d4dd6f12ca3a83ff770f2de647066
SHA256 8b67a1316e1f8e1085f0a5c2fbed20562beb073f5e53e3a960b17e54d840dd37
CRC32 c1b6c846
Example file location C:\Windows\System32\
Filename dssec.dll
System Windows 8
File size 44544 bytes
Date 2012-07-26
File details
MD5 cf0899a65d31cbaf66b2715515d65c8b
SHA1 5c77bcdb5f76c3712c6692686fc4fb05e29048cd
SHA256 aabb532093aac4dbda2a997acb4089380113adb896c4ece979e132d531615fe9
CRC32 f1487c1e
Example file location 1: C:\Windows\System32\
Filename dssec.dll
System Windows 7
File size 44032 bytes
Date -0001-11-30
File details
MD5 7faeb58d3aea4c0a6764060a08c67579
SHA1 b5d664eaab4ee984c69caa7b858d7db6f1205010
SHA256 a9452626de586df194d24a5ea7ee2821eacd23146e1d24fe9d49db771e3ecf3f
CRC32 ba666be2
Example file location C:\Windows\SysWOW64\
Filename dssec.dll
System Windows 7
File size 55808 bytes
Date 2009-07-14
File details
MD5 fbd30f8878346cc2743fe11e46e48d50
SHA1 53fa875a5dfddbec28bb3872b9c054ac0e63e556
SHA256 6a8ef140e5ccf3bc8e62f18c04da82a0a0125ed3c6f932be3af1c297e94763a0
CRC32 73ccf976
Example file location C:\Windows\SysWOW64\
Filename dssec.dll
System Windows Vista
File size 44032 bytes
Date -0001-11-30
File details
MD5 4c7d8d9885acd8e6e8349b14f008a21f
SHA1 33dfebda8f333009de63fdd0b3cf3131175ec0a2
SHA256 6ac66aab94d30ebf9bc1c92108c4b20eb1f888597506cd8aa835a850a1196e69
CRC32 4f051804
Example file location ---
Filename dssec.dll
System Windows Vista
File size 55296 bytes
Date 2008-01-21
File details
MD5 ab9d10cca502271ffb8a29e2726a4251
SHA1 d341b09e0e79269b7f114ef991975f0cd3dd7f13
SHA256 60895a3152aebd19ac2804131595bb163d72f19cc2e69d8d4fc1fb11eb0d3886
CRC32 072e6e78
Example file location ---
Filename dssec.dll
System Windows XP
File size 51200 bytes
Date 2008-04-14
File details
MD5 843176bf01f4208675d6c71ce7b13325
SHA1 d3b0b796281d606cf3e3b04502475d05ede87307
SHA256 0991c7f938d63f5fc92246cfe5ea039b6a6720b009796a7e440fb17825d57ca7
CRC32 eae6628f
Example file location ---