IRIS Readiris DLL prepro.dll

Troubleshooting Prepro.dll DLL Errors and Downloading Updates

Last Updated: 12/04/2023
[Time to Read: ~3-5 minutes]

prepro.dll, also known as a Image Preprocessing Engine file, was created by IRIS for the development of prepro. DLL files fall under under the Win32 DLL (Dynamic link library) file type category.

The first version of prepro.dll was released for the Windows 10 Operating System on 02/17/2015 inside Readiris 15. According to our records, this is the primary and most recent file release from IRIS.

Continue reading below to discover detailed file information, DLL file troubleshooting, and free downloads of several versions of prepro.dll.

File Analysis Provided by Jason Geater (Author)


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File Overview


General Information ✻
File Name: prepro.dll
File Extension: DLL file extension
Description: Image Preprocessing Engine
Object File Type: Dynamic link library
File Operating System: Win32
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: IMAGE RECOGNITION INTEGRATED SYSTEMS SA
Software Program: prepro
Legal Copyright: ©1989-2014 IMAGE RECOGNITION INTEGRATED SYSTEMS SA
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x381b6
Code Size: 354304
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What are prepro.dll Error Messages?


Dynamic Link Library prepro.dll Errors

prepro.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like prepro.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. Readiris) could share the same prepro.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when prepro.dll is attempted to be loaded either when Readiris is starting up, or in some cases already running. Some of the most common prepro.dll errors include:

Your prepro.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Readiris), or deleted by a malware infection. Furthermore, prepro.dll file corruption could be caused from a power outage when loading Readiris, system crash while loading prepro.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix prepro.dll Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your prepro.dll issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the prepro.dll error, please proceed to the Step 2 below.

Step 2: If recently installed Readiris (or related software), uninstall then try reinstalling Readiris software.

You can uninstall Readiris software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Readiris 15 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Readiris software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Readiris 15

IRIS

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many prepro.dll error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the prepro.dll error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your prepro.dll File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate prepro.dll file version. We maintain a comprehensive database of 100% malware-free prepro.dll files for every applicable version of Readiris. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download prepro.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Readiris folder location:
    Windows 10: C:\Program Files (x86)\Readiris Pro 15\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve prepro.dll problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download prepro.dll Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying prepro.dll to your appropriate Windows system directory. IRIS typically does not release Readiris DLL files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing prepro.dll and all other DLL files for Readiris. An incorrectly installed DLL file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
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