AuxiliaryDisplayClassInstaller.dll - How to Fix? Download Now

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

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

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

File info

General information
Filename AuxiliaryDisplayClassInstaller.dll
File extension DLL
Description Class installer for Microsoft Windows SideShow-compatible devices
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 AuxiliaryDisplayClassInstaller.dll file. AuxiliaryDisplayClassInstaller.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 AuxiliaryDisplayClassInstaller.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to AuxiliaryDisplayClassInstaller.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 AuxiliaryDisplayClassInstaller.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.

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

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

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

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

If the steps did not solve your AuxiliaryDisplayClassInstaller.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 AuxiliaryDisplayClassInstaller.dll
System Windows 8
File size 205312 bytes
Date 2012-07-26
File details
MD5 fec21fcd721f996e273b7643d1371ada
SHA1 fe2e97f2e97d90192d065cda677b29785aa7a463
SHA256 6e6831e0b5954d549512f1d7bd494ee38c7e2962c8f537e3b3b029a557aaea1e
CRC32 aed97fcd
Example file location C:\Windows\System32\
Filename AuxiliaryDisplayClassInstaller.dll
System Windows 7
File size 136192 bytes
Date 2009-07-14
File details
MD5 350e87b7881905be049874c22d667239
SHA1 976fdd92f687e5f13236b54f9bd494c0c8a47626
SHA256 728c1c087ecb61564fc29a0372fb331def6e1f05ba40ca0a55d3cc76938736ca
CRC32 459d16b2
Example file location C:\Windows\System32\
Filename AuxiliaryDisplayClassInstaller.dll
System Windows Vista
File size 109568 bytes
Date 2006-11-02
File details
MD5 43e0d97374378dfac2a2d126d6a96c4a
SHA1 235598cb784548f0bce415f7960110a7664c4db6
SHA256 0a66d38639302e35a925658fe2f31374366aaa810dfbb19d4ba10390b770cf44
CRC32 db4db0e6
Example file location C:\Windows\System32\