Download and Fix AuxiliaryDisplayApi.dll

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

AuxiliaryDisplayApi.dll file Microsoft Windows SideShow API. 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 AuxiliaryDisplayApi.dll related errors on your device. You can also download AuxiliaryDisplayApi.dll file compatible with Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

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

File info

General information
Filename AuxiliaryDisplayApi.dll
File extension DLL
Description Microsoft Windows SideShow API
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.)
Fix File Errors

There are various types of errors related to AuxiliaryDisplayApi.dll file. AuxiliaryDisplayApi.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 AuxiliaryDisplayApi.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to AuxiliaryDisplayApi.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 AuxiliaryDisplayApi.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.

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

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

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

  • Windows 8: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows Vista: C:\Windows\SysWOW64\
  • Windows Vista: C:\Windows\SysWOW64\

If the steps did not solve your AuxiliaryDisplayApi.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 AuxiliaryDisplayApi.dll
System Windows 8
File size 203264 bytes
Date 2012-07-26
File details
MD5 e07c20551fa2cd16c5bc9d5049cbcbfb
SHA1 9a97f40d13248ab8ef208886938be3c020581829
SHA256 da5031d84ccf6d7f69afc36d596ea79c09c73c1276332092a250a9f0e9363543
CRC32 4da31229
Example file location C:\Windows\System32\
Filename AuxiliaryDisplayApi.dll
System Windows 7
File size 164352 bytes
Date 2009-07-14
File details
MD5 0058a0a711759ad190a535f382820208
SHA1 06ce02686939c555c899fb7ce100f91d884cd2b9
SHA256 aaa303ebf959b0a035592f5ba4be02c48b7e92efb1d269ab1e8fc6fc87ffda54
CRC32 cc8ff29e
Example file location C:\Windows\System32\
Filename AuxiliaryDisplayApi.dll
System Windows 7
File size 119808 bytes
Date -0001-11-30
File details
MD5 4b1d054154b845556350480bf476617a
SHA1 1f9529d65cb4b9d468ecd6a15f802455fbcae074
SHA256 b6d2acd94b8815fe7c4639d7e28e44a38a83c491667609b71161aaa8cf4797f7
CRC32 1cd519a6
Example file location C:\Windows\System32\
Filename AuxiliaryDisplayApi.dll
System Windows Vista
File size 143360 bytes
Date 2008-01-21
File details
MD5 268d7de4475d212c58fe5e5eca9caf68
SHA1 c8eee0496ef05654d7685185b9f55472cfcb4b4b
SHA256 6e62881945f25f9de8b36df93b6a6d3c917b455b3096185831488cb6fe31e967
CRC32 c66e0046
Example file location C:\Windows\SysWOW64\
Filename AuxiliaryDisplayApi.dll
System Windows Vista
File size 103936 bytes
Date -0001-11-30
File details
MD5 322614d469d1b4268dbbe45da13dbf05
SHA1 4be4c13499f6d3bba3ca8d4365f4f2ae0f73e729
SHA256 03f90e4d17b4c1ba28ec50486a8baa21618fb1237f4a5dd7e0124a1a9d8c2994
CRC32 5f81ac20
Example file location C:\Windows\SysWOW64\