Downloading and Repairing JavaWebStart.dll

Last Updated: 11/27/2023
[Time Required for Reading: 3.5 minutes]

JavaWebStart.dll, also known as a Java(TM) Web Start ActiveX Control file, was created by Oracle Corporation for the development of Java(TM) 2 Platform Standard Edition 5.0 U22. DLL files fall under under the Win32 DLL (Dynamic link library) file type category.

The first release in the Windows 10 Operating System for JavaWebStart.dll was on 02/07/2006 inside Java Development Kit (JDK) J2SE 5.0 Update 22. This is not only most recent release from Oracle Corporation, but it's the only version known in existence.

In this article, you will find detailed JavaWebStart.dll information, a DLL file troubleshooting guide, and a list of versions that are available for free download.

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File Overview


General Information
File Name: JavaWebStart.dll
File Extension: DLL file extension
Description: Java(TM) Web Start ActiveX Control
Object File Type: Dynamic link library
File Operating System: Win32
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: Sun Microsystems, Inc.
Software Program: Java(TM) 2 Platform Standard Edition 5.0 U22
Legal Copyright: Copyright © 2004
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: Debug
File Flags Mask: 0x003f
Entry Point: 0xa7d3
Code Size: 57344


What are JavaWebStart.dll Error Messages?


Dynamic Link Library JavaWebStart.dll Errors

JavaWebStart.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like JavaWebStart.dll, 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. Java Development Kit (JDK)) could share the same JavaWebStart.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 JavaWebStart.dll is attempted to be loaded either when Java Development Kit (JDK) is starting up, or in some cases already running. Some of the most common JavaWebStart.dll errors include:

Your JavaWebStart.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Java Development Kit (JDK)), or deleted by a malware infection. Furthermore, JavaWebStart.dll file corruption could be caused from a power outage when loading Java Development Kit (JDK), system crash while loading JavaWebStart.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.



How to Fix JavaWebStart.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 JavaWebStart.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 JavaWebStart.dll error, please proceed to the Step 2 below.

Step 2: If recently installed Java Development Kit (JDK) (or related software), uninstall then try reinstalling Java Development Kit (JDK) software.

You can uninstall Java Development Kit (JDK) 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 Java Development Kit (JDK) J2SE 5.0 Update 22 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Java Development Kit (JDK) software.

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

Java Development Kit (JDK) J2SE 5.0 Update 22

Oracle Corporation

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 JavaWebStart.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 JavaWebStart.dll 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 JavaWebStart.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 JavaWebStart.dll file version. We maintain a comprehensive database of 100% malware-free JavaWebStart.dll files for every applicable version of Java Development Kit (JDK). 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 JavaWebStart.dll Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Java Development Kit (JDK) folder location:
    Windows 10: C:\Program Files (x86)\Java\jre1.5.0_22\bin\
    Windows 10: C:\Program Files (x86)\Java\jdk1.5.0_22\jre\bin\
  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 JavaWebStart.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.



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


CAUTION : We strongly advise against downloading and copying JavaWebStart.dll to your appropriate Windows system directory. Oracle Corporation typically does not release Java Development Kit (JDK) 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 JavaWebStart.dll and all other DLL files for Java Development Kit (JDK). 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


Files Related to JavaWebStart.dll


DLL Files Related to JavaWebStart.dll

File Name Description Software Program (Version) File Size (bytes) File Location
api-ms-win-core-file-l... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 18040 C:\Windows\System32\LogFiles\WMI\RtBackup\
qtquick2plugin.dll C++ Application Development Framework Qt5 (5.11.1.0) 30544 C:\Users\Tester\AppData\Local\
LibWrapper.dll Dynamic Link Library Java Development Kit (JDK) J2SE 5.0 Update 22 10559488 C:\Program Files (x86)\Common Files\microsoft s...
api-ms-win-crt-multiby... ApiSet Stub DLL Microsoft® Windows® Operating System (10.0.17134.12) 26232 C:\Users\Tester\AppData\Local\
qgif.dll C++ Application Development Framework Qt5 (5.11.1.0) 41808 C:\Users\Tester\AppData\Local\

Other Files Related to JavaWebStart.dll

File Name Description Software Program (Version) File Size (bytes) File Location
CBS.log Log Java Development Kit (JDK) J2SE 5.0 Update 22 888623 C:\Windows\Logs\CBS\
CBS.log Log VirtualBox 6.0.14 971119 C:\Windows\Logs\CBS\
setupact.log Log Java Development Kit (JDK) J2SE 5.0 Update 22 62521 C:\Windows\Panther\UnattendGC\
setupact.log Log VirtualBox 6.0.14 62521 C:\Windows\Panther\UnattendGC\
SA.DAT Game Data Java Development Kit (JDK) J2SE 5.0 Update 22 6 C:\WINDOWS\Tasks\


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