dsauth.dll Troubleshoot and Download

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

dsauth.dll file DS Authorization for Services. 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 dsauth.dll related errors on your device. You can also download dsauth.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 dsauth.dll
File extension DLL
Description DS Authorization for Services
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 dsauth.dll file. dsauth.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 dsauth.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to dsauth.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 dsauth.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of dsauth.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 dsauth.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 dsauth.dll
System Windows 10
File size 30720 bytes
Date 2017-03-18
File details
MD5 209f9e95d14f14656a3ce1641b388458
SHA1 ebe42593a7568a07728cf0912d6b51b734b6a7fd
SHA256 7227c85242c14417e1cf17eb26e9caf6f6308b0b2ab994a50634857c3cec8998
CRC32 3b0d75ac
Example file location C:\Windows\System32\
Filename dsauth.dll
System Windows 8.1
File size 30208 bytes
Date 2014-11-21
File details
MD5 36df4d814e0146a672aa92266edae579
SHA1 46c6ac1d01e7383ade269afed9e41335f8527d81
SHA256 fb6891f4dda6d32e071548d8568c87a2c4bfb75a3c02bbb0c23019ff7c2de34e
CRC32 f7e590e1
Example file location C:\Windows\System32\
Filename dsauth.dll
System Windows 8
File size 29696 bytes
Date 2012-07-26
File details
MD5 df92b404a7d53b019169cabb89b2640e
SHA1 954d631b8cf09d3d09d2b26eb30e8ebc7da89b89
SHA256 b570a23c82695e041a0f7622e0fd050f7bdd115d7323eb70124c0f1f291def9b
CRC32 5fc48ebb
Example file location 1: C:\Windows\System32\
Filename dsauth.dll
System Windows 7
File size 30208 bytes
Date -0001-11-30
File details
MD5 6d666983c638f5e507c4a11aed1291cc
SHA1 153e79883907cd2441660a73698c68e1e15b3ab1
SHA256 44ee3597d257219c3d849e9c9027a3ba3a9d6b985f39c8e212321df4def4a676
CRC32 25cec81c
Example file location C:\Windows\SysWOW64\
Filename dsauth.dll
System Windows 7
File size 36864 bytes
Date 2010-11-21
File details
MD5 786d0e9be38bad3c8fffa9bab6909582
SHA1 91993f22f773f8ae36cfb0135f927dc70b42710a
SHA256 914772fd7378fa68dffad6b120ecc4200d49da6ec55e8af61805a341ec25e369
CRC32 4abf7b31
Example file location C:\Windows\SysWOW64\
Filename dsauth.dll
System Windows Vista
File size 35840 bytes
Date 2008-01-21
File details
MD5 39a55445284ffb328295a81842115b55
SHA1 c595f65623aa41013b468c1b42e544f81ad74464
SHA256 02675dc4c9e1eb903ed369b2441d81cf08d96057434ea0830c00b9ee8406ed4e
CRC32 e0645931
Example file location ---
Filename dsauth.dll
System Windows Vista
File size 29696 bytes
Date -0001-11-30
File details
MD5 474f35f4aa33c4e2f20ce28bb7c81c80
SHA1 bc33c9064aa600b98a777e4416a88dada3a6b082
SHA256 31a43630cf6accb9e41076626a1502228fd37ed7d85d0a5f02002fc23696c060
CRC32 af2258a6
Example file location ---
Filename dsauth.dll
System Windows XP
File size 62976 bytes
Date 2008-04-14
File details
MD5 eda57c644ca1ea58a361b81822f3ff0c
SHA1 b0f97e7e8a5372886e4d0714c835fe87f72579fc
SHA256 e1b03146916316445843c2ba6a93d984e5a2c927dd1a807682da8f59d295b97d
CRC32 a1ac58d9
Example file location ---