Troubleshoot AcSpecfc.dll Errors and Download File

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

AcSpecfc.dll file Dynamic Link Library. The file was developed by Microsoft for use with Windows software. Here you will find detailed information about the file and instructions how to proceed in the event of AcSpecfc.dll related errors on your device. You can also download AcSpecfc.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 AcSpecfc.dll
File extension DLL
Type Dynamic Link Library
Description Dynamic Link Library
Program Windows 10
Software Windows
Author Microsoft
Software version 10
File size 484864
Oldest file 2008-04-14
Latest file 2017-03-18

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

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



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


Problems related to AcSpecfc.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 AcSpecfc.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.

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

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

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

  • Windows 10: C:\Windows\AppPatch\
  • Windows 8.1: C:\Windows\AppPatch\
  • Windows 8: 1: C:\Windows\AppPatch\
  • Windows 7: C:\Windows\AppPatch\AppPatch64\
  • Windows 7: C:\Windows\AppPatch\AppPatch64\
  • Windows Vista: ---
  • Windows Vista: ---
  • Windows XP: ---

If the steps did not solve your AcSpecfc.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 AcSpecfc.dll
System Windows 10
File size 484864 bytes
Date -0001-11-30
File details
MD5 94b898c26bd1a842c258edb4682d6933
SHA1 0d7336cb93a88a3d82722dd628d900d48b444e61
SHA256 ccb59353c1961b603db9f283d29910b7210d7307895a230ebfbcc8b63da3c0e5
CRC32 bfe65b93
Example file location C:\Windows\AppPatch\
Filename AcSpecfc.dll
System Windows 8.1
File size 472576 bytes
Date -0001-11-30
File details
MD5 58e1fcd265eeed44674aa4b45291e002
SHA1 ef0c93beb2cf75e4349a9b63a8229d0bf35198e0
SHA256 1bdaebf16184e25b69f7eb784bb1d134b54d4120293f79e8a1416243a6f3a3c5
CRC32 b85e23ea
Example file location C:\Windows\AppPatch\
Filename AcSpecfc.dll
System Windows 8
File size 439296 bytes
Date -0001-11-30
File details
MD5 5debd589a7b0aa1c9c001432d571f8bb
SHA1 3eff2eb718c4198c0ee0152abda2a350b09beb25
SHA256 ff0fcb67d7295f338eb63a2ff4e358d7815cc41c44d125f84ac920df2f1241ef
CRC32 0a0b4a2c
Example file location 1: C:\Windows\AppPatch\
Filename AcSpecfc.dll
System Windows 7
File size 111104 bytes
Date -0001-11-30
File details
MD5 045908678323efd60c46b3b32cc44811
SHA1 58fd0e5de17d1c5f57848b5de380ec1d462134a8
SHA256 d28521ca5bad1ef3c64b3022a68770bd86dcf5a4500502056cb799d7ae2f0872
CRC32 3ac1435b
Example file location C:\Windows\AppPatch\AppPatch64\
Filename AcSpecfc.dll
System Windows 7
File size 474112 bytes
Date -0001-11-30
File details
MD5 a0cf76137d2f23c76c860cad2c605780
SHA1 9dcdca64f3f8c2e6fef7a9951b5c2e3c7f10643a
SHA256 f30b195713efd7e3ea7bf73e514471a4821a865c9a9733c77fbb37dc7e54e369
CRC32 c94cdce5
Example file location C:\Windows\AppPatch\AppPatch64\
Filename AcSpecfc.dll
System Windows Vista
File size 459264 bytes
Date -0001-11-30
File details
MD5 372b40fb6085204142aa800a818f5e25
SHA1 5f30a2f40322fba1e35d188aa5c2447915e0604c
SHA256 1ecb218caf9451452d612f0aa573dbfbe3c973d0b194142d143614d818a2c330
CRC32 243ea919
Example file location ---
Filename AcSpecfc.dll
System Windows Vista
File size 100352 bytes
Date -0001-11-30
File details
MD5 ae7511c6d1ad3568ca65a6b2857193d3
SHA1 accfce9b530085bff6786c18a3d15de45acd8405
SHA256 d741e90364bac995819939243f8b6bcf2206876ab0f4607c57ddd9a52adf7b02
CRC32 ddc2f244
Example file location ---
Filename AcSpecfc.dll
System Windows XP
File size 245248 bytes
Date 2008-04-14
File details
MD5 2777a60fda25690e58708b3e876e44b7
SHA1 e599254afaa24950c9c417a25ac5047c84b1924d
SHA256 ce9e57e4d9c4ec1b9be197e6aa8a30f170a4a12ac96818848340508e9d901af3
CRC32 65077f65
Example file location ---