What are j9ddr.dat Error Messages?

Dynamic Link Library j9ddr.dat Errors

j9ddr.dat is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like j9ddr.dat, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like klist.exe - to follow. These files were created so that multiple programs (eg. PASW Statistics) could share the same j9ddr.dat 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 DAT 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 j9ddr.dat is attempted to be loaded either when PASW Statistics is starting up, or in some cases already running. Some of the most common j9ddr.dat errors include:

• Access Violation at address - j9ddr.dat.
• j9ddr.dat could not be found.
• Cannot find C:\Program Files\IBM\SPSS\Statistics\Subscription\JRE\bin\default\j9ddr.dat.
• Cannot register j9ddr.dat.
• Cannot start PASW Statistics. A required component is missing: j9ddr.dat. Please install PASW Statistics again.
• Failed to load j9ddr.dat.
• The application has failed to start because j9ddr.dat was not found.
• The file j9ddr.dat is missing or corrupt.
• This application failed to start because j9ddr.dat was not found. Re-installing the application may fix this problem.

Your j9ddr.dat file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with PASW Statistics), or deleted by a malware infection. Furthermore, j9ddr.dat file corruption could be caused from a power outage when loading PASW Statistics, system crash while loading j9ddr.dat, 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.

How to Fix j9ddr.dat 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 j9ddr.dat issue. These troubleshooting steps are listed in the recommended order of execution.

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 j9ddr.dat error, please proceed to the Step 2 below.

You can uninstall PASW Statistics 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 PASW Statistics 18 and click "Uninstall"
5. Follow the prompts for uninstallation.

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

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

PASW Statistics 18

SPSS Inc

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many j9ddr.dat 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 j9ddr.dat error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your j9ddr.dat 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 j9ddr.dat file version. We maintain a comprehensive database of 100% malware-free j9ddr.dat files for every applicable version of PASW Statistics. 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 j9ddr.dat Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate PASW Statistics folder location:
   
   Windows 10: C:\Program Files\IBM\SPSS\Statistics\Subscription\JRE\bin\default\
   Windows 10: C:\Program Files\IBM\SPSS\Statistics\Subscription\JRE\bin\compressedrefs\
   
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.

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