Fix ddp_ps.dll Errors

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

ddp_ps.dll file Microsoft Data Deduplication Service proxy/stub. 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 ddp_ps.dll related errors on your device. You can also download ddp_ps.dll file compatible with Windows 10, Windows 8.1, Windows 8 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8

File info

General information
Filename ddp_ps.dll
File extension DLL
Description Microsoft Data Deduplication Service proxy/stub
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.)

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

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



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


Problems related to ddp_ps.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 ddp_ps.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.

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

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

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

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\

If the steps did not solve your ddp_ps.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 ddp_ps.dll
System Windows 10
File size 30208 bytes
Date 2017-03-18
File details
MD5 01ecf04bb29816aa13cfd62ad224a236
SHA1 96194113e945692fafd317d152ce54b125d7900b
SHA256 5d997ae12bc3dd4c2058ac26bcc064aefd91da03bb2c2911ed1f8a3ff00e46a8
CRC32 93337180
Example file location C:\Windows\System32\
Filename ddp_ps.dll
System Windows 8.1
File size 28160 bytes
Date 2014-11-21
File details
MD5 9e5f0a0086a00a59c9865e153d7c3476
SHA1 c4f769c0b8f1df0b99a0e983798a94b22dac4162
SHA256 b542d6daa04b334173522656e0f9b13ce02bf310afb13ba8d00a986a10a70679
CRC32 566e1e5d
Example file location C:\Windows\System32\
Filename ddp_ps.dll
System Windows 8
File size 26624 bytes
Date 2012-07-26
File details
MD5 409c1076d687bd3a6006b8bc2bfbbf4b
SHA1 5227c7f50e2b35c650da4c63e830c6d1cb2202be
SHA256 eb299a166459721b6923cb0d50fbf4aa098d4cffe7a8317dd545c572ebe391bb
CRC32 85aea8d1
Example file location 1: C:\Windows\System32\