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Fix MP4SDECD.DLL Errors

Sometimes Windows system displays error messages regarding corrupted or missing MP4SDECD.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 MP4SDECD.DLL file can therefore effect in failed execution of the started process.

MP4SDECD.DLL file Windows Media MPEG-4 S Video Decoder. 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 MP4SDECD.DLL related errors on your device. You can also download MP4SDECD.DLL file compatible with Windows 10, Windows 8, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8, Windows Vista, Windows Vista

File info

General information
Filename MP4SDECD.DLL
File extension DLL
Description Windows Media MPEG-4 S Video Decoder
Software
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
Details
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.)
MP4SDECD.DLL

There are various types of errors related to MP4SDECD.DLL file. MP4SDECD.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 MP4SDECD.DLL file. If you encounter one listed below (or similar), please consider the following suggestions.

  • MP4SDECD.DLL is corrupted
  • MP4SDECD.DLL cannot be located
  • Runtime Error - MP4SDECD.DLL
  • MP4SDECD.DLL file error
  • MP4SDECD.DLL file cannot be loaded. Module was not found
  • cannot register MP4SDECD.DLL file:
  • MP4SDECD.DLL file could not be loaded
  • MP4SDECD.DLL file doesn't exist

MP4SDECD.DLL

Error

Application could not be started because MP4SDECD.DLL file is missing. Reinstall the application to solve the problem.

OK

Problems related to MP4SDECD.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 MP4SDECD.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.

MP4SDECD.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 MP4SDECD.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 MP4SDECD.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 MP4SDECD.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 MP4SDECD.DLL file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the MP4SDECD.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 MP4SDECD.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 MP4SDECD.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 MP4SDECD.DLL file

The last solution is to manually download and replace MP4SDECD.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 MP4SDECD.DLL file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of MP4SDECD.DLL file example directory paths.

  • Windows 10: C:\Windows\System32\
  • Windows 8: C:\Windows\System32\
  • Windows Vista: C:\Windows\System32\
  • Windows Vista: C:\Windows\System32\

If the steps did not solve your MP4SDECD.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 MP4SDECD.DLL
System Windows 10
File size 350744 bytes
Date 2017-03-18
File details
MD5 c1459fb470425f1fc9db8b53775bfd6c
SHA1 9efe60625b600df05ee232fa7642dd0d22007790
SHA256 408238e9001f9661e29dbd351c24aebe2fbcbbde752a6237d0f90a81067c9464
CRC32 8b3487c1
Example file location C:\Windows\System32\
Filename MP4SDECD.DLL
System Windows 8
File size 436736 bytes
Date 2012-07-26
File details
MD5 122436da2815034ad09dd8efbbe42907
SHA1 54405f9698bc0f1a258b338ccab0247cd854d1b9
SHA256 c3ead78cad4cff4e8168f79dc3a1d8564323cc385d8674145122969b0a3819c1
CRC32 8b9ca337
Example file location C:\Windows\System32\
Filename MP4SDECD.DLL
System Windows Vista
File size 295424 bytes
Date 2008-01-21
File details
MD5 198a8fdfeb5808dec04e80a62c6fdbfc
SHA1 dddd202fc483d9dd44d4d05194d2516173f9e0c5
SHA256 ed49bdd6e655e813de068bf59b8b94686381f7a6532b6d32114c61b451af00ab
CRC32 d1039ae4
Example file location C:\Windows\System32\
Filename MP4SDECD.DLL
System Windows Vista
File size 317952 bytes
Date -0001-11-30
File details
MD5 2d9e88f435ae84486e99f19e3adac2e2
SHA1 de5e4d7f8fbf8f8ff4b8ec3a6226fbb21310faad
SHA256 56be35256e5994dea51aa346b6eef61e8f5d75622833e20ab817b3b81d30a98d
CRC32 097767df
Example file location C:\Windows\System32\