appinfo.dll - Repair Issues and Download

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

appinfo.dll file Application Information Service. 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 appinfo.dll related errors on your device. You can also download appinfo.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista 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 Vista

File info

General information
Filename appinfo.dll
File extension DLL
Description Application Information Service
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Driver
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 appinfo.dll file. appinfo.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 appinfo.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to appinfo.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 appinfo.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of appinfo.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\System32\
  • Windows Vista: C:\Windows\System32\

If the steps did not solve your appinfo.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 appinfo.dll
System Windows 10
File size 111616 bytes
Date 2017-03-18
File details
MD5 35d2c0752cfb1465d2dfdaddfc238135
SHA1 29895c81d0865d79328b9b8f0a53ad1a4f4a6a14
SHA256 a8f4a21e0ef14fd6387dee35a0cee055feeb8cdb6ea368e3dcfe70a1fbbf1699
CRC32 349363a5
Example file location C:\Windows\System32\
Filename appinfo.dll
System Windows 8.1
File size 89600 bytes
Date 2014-11-21
File details
MD5 5f5f0c1e3909143fbd9e3bd18a6c7d23
SHA1 5fc88a16aa2c294f456c8a8c5587f5703a11e5eb
SHA256 d8005108886b40e2c94553b42a2942f0aa631c3d6fcae9c2386e1c460794288e
CRC32 acca43c8
Example file location C:\Windows\System32\
Filename appinfo.dll
System Windows 8
File size 52224 bytes
Date 2012-07-26
File details
MD5 9ec93dfd472298d7006627c5f81de250
SHA1 25dcbbd2377ecf438eb7bc50b3f0616805e474f7
SHA256 963b993f17e659c212c1f2b784babba3139414c938adb6f9529d46fe03dca47e
CRC32 382aa4b4
Example file location 1: C:\Windows\System32\
Filename appinfo.dll
System Windows 7
File size 70656 bytes
Date -0001-11-30
File details
MD5 3977d4a871ca0d4f2ed1e7db46829731
SHA1 3e8ed4c83459e25bc7092017ec10f82a4587fabd
SHA256 2af1c3225994769c3fd25cd7e9603964b035576f25b0b6d91545566e0722ffaa
CRC32 43b7e9ee
Example file location C:\Windows\System32\
Filename appinfo.dll
System Windows Vista
File size 45056 bytes
Date 2008-01-21
File details
MD5 9c37b3fd5615477cb9a0cd116cf43f5c
SHA1 24f9444622ab35756730e3fffb006174f33ff054
SHA256 bd3f85a29931072f2b0c7283761e224e4621fe0d9d34d6d668a4516b28388484
CRC32 d90d4a0a
Example file location C:\Windows\System32\