Repair and Download DDOIProxy.dll Now

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

DDOIProxy.dll file DDOI Interface Proxy. 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 DDOIProxy.dll related errors on your device. You can also download DDOIProxy.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7 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

File info

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

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



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


Problems related to DDOIProxy.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 DDOIProxy.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of DDOIProxy.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 7: C:\Windows\System32\

If the steps did not solve your DDOIProxy.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 DDOIProxy.dll
System Windows 10
File size 13824 bytes
Date 2017-03-18
File details
MD5 f91036a94c1859465e10769b923e1a6f
SHA1 22f48f0ac42aaff6830dd094649d459ebfc5eb06
SHA256 de9164cb6baa4bec8988899ae0eb2e0992d2f36bf4272f245d7f82ea1ebd9163
CRC32 b6de9536
Example file location C:\Windows\System32\
Filename DDOIProxy.dll
System Windows 8.1
File size 14336 bytes
Date 2014-11-21
File details
MD5 96f444524ad3ab5bbee76acd2eb5be94
SHA1 2ee5fa6eacbe17e39398eacdbe593b3d21a7431b
SHA256 50796dc59c9c9579980ac7bd5f1abec02ec3bf62b2c5423c3b979ff45fac1590
CRC32 3f1047bb
Example file location C:\Windows\System32\
Filename DDOIProxy.dll
System Windows 8
File size 13312 bytes
Date 2012-07-26
File details
MD5 5cb8cf07b2a408fb0e168b7943128abc
SHA1 1f9a6ecdd0a4f0ec4cba43ed70e6102a38d4e258
SHA256 5831fe26fb1ef3ceeefd62f3e890626f287a10fdb3dfb41b8278aebb7b596b34
CRC32 7558fba8
Example file location 1: C:\Windows\System32\
Filename DDOIProxy.dll
System Windows 7
File size 27136 bytes
Date 2009-07-14
File details
MD5 1f063d9fc84d1ac557c313eadd29eca5
SHA1 8bfafe6a6bf150e02f46b4aa30ba70375422fe34
SHA256 4664efda2b6be6541f43cbda8972cbdb5f5c1c18b3b5c64f2b53347629995fc6
CRC32 8fc7cbc9
Example file location C:\Windows\System32\
Filename DDOIProxy.dll
System Windows 7
File size 10752 bytes
Date -0001-11-30
File details
MD5 8f40b3a4ec0b64ab7133e7532ba7e5bf
SHA1 ed1fe4cf3822a0aa2490331f6c7999e42bf055fe
SHA256 cb5a48b2163d449dea2a556e4409155edbfb4d830b1101b42f609816b1491351
CRC32 3efc6abd
Example file location C:\Windows\System32\