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Java can’t unzip, core files error 25099. In Task Manager under process, jqs.exe is not listed. Now what?

Java errors often take on a life of their own as they avoid removal. However, persistence will pay off. Here are a few more tips to help you get out of this situation. Read through all of them as a variation exists.

What is Error 25099?

Java Error 25099 indicates that the installation process has failed for this application. It leads to a problem unzipping core files that are needed to complete the installation. This error is a bit tricky to resolve at times, but it needs to be resolved in order to install Java. The installation starts and then hiccups and hangs there preventing you from getting the full product. Let’s see if the following tips help. It seems as though a Java process is running and is unable to either continue or stop and this is creating the problem. The ‘jqs’ in jqs.exe stands for “Java Quick Starter.”

Solving Error 25099 with Task Manager Does Not Work with “Java Quick Starter”

The biggest problem using the Task Manager to resolve this error occurs when the jqs.exe process is not listed. When this happens, you aren’t able to stop the process in order to uninstall the partial or old Java application. You will need to access and utilize the Windows Command Prompt utility to remove the jqs.exe process.

Resolving Error 25099: Windows Command Prompt

The following steps will stop the jqs.exe process:

1. Navigate to “Start” and click.
2. Select “Run.”
3. An open box appears. Type in the following command ‘cmd’ to generate the Command Prompt Window. Just type the letters.
4. In the open box, type the following exactly: net stop “Java Quick Starter”  
5. Press “Enter.”
6. If you have been successful, then you will see the following message: “The Java Quick Starter service was stopped successfully.” It will probably appear beneath the words: “C:\Documents and Settings\user>net stop “Java Quick Starter.”
7. Once you have completed this scenario, you can visit the Java website and download the latest version.

Solving Error 25099 with Task Manager: Java Update

Sometimes, it is the Java Update that is actually causing the error 25099 to occur. This process fails to stop and continues to run, leading to the problem with unzipping core files. Open the Task Manager by pressing the following keys all at once: CRTL, ALT, and DEL. Look at the top of the “Task Manager” box and click on “Processes.” Since it might be the update for Java that is creating the problem and generating error 25099, you need to look for jusched.exe. Select it and choose the option to end task.

I keep getting the error message: java.io.FileNotFoundException: C:\Documents and Settings\Compaq_Owner\ Application DataSunJavaDeployment\ securitytrusted.certs (Access is denied).

Many MMOs (Massive Multi-Player Online) games rely on the magic of Java to work across the world. Although Java is universal, individual computers will have their quirks before all of the programs are running smoothly. Unfortunately, for this error there isn’t a specific fix from either Runescape or Java, but we can still try to fix it based on the type of error.

First, the majority of java.io.FileNotFoundExceptions are related to JDK (Java Development Kit) errors. JDK is for game developers, not game players. To play Runescape, you must download and install JRE (Java Runtime Environment) and the recommendation is to use version 6.0 or higher. Take a quick trip to the Java website, java.com to find out which version, if any, your computer is running. You may want to remove Java and reinstall a fresh copy just to make sure that the program installation is sound.

Another possibility is you have a firewall or other Internet security measure blocking Java applets. Unfortunately, not only those with scruples develop Java applets (the name of the little web-based applications that run on Java). Check your firewall and security settings to see if it is blocking Runescape. You can try adding it to an Allow list, or test by turning off the firewall just to see if this is where the block is occurring. There is also a Java Console in the Control Panel once Java is installed that may also provide Security Settings.

Finally, there are the problems associated with Windows Vista. First, you can’t use 64-bit Java with Runescape. The game does not support 64-bit Java yet, so that may be why there is a missing “file” though in reality the problem is the wrong version. Java.com may recommend 64-bit Java due to your detected system settings, Vista. You will need to manually select a 32-bit version of Java (such as one for XP) and it should work fine.

One last possible culprit is you are trying to run and install Java and Runescape without the administrator account, or without permissions to install software from the administrator. Windows Vista also has a feature called User Access Control that has been known to create access issues for Java applets. The only way around it is to disable the feature from the Control Panel, but Java warns this action will diminish your computer’s security features.

If nothing else works, remove Runescape and Java from your computer. Download and reinstall them, careful to note the settings and versions you are using. Then try calling Runescape’s technical help line. It’s possible they know of this error, and just haven’t published a solution for it. Given the proliferation of Runescape, and the familiar Compaq brand name, it likely just something is slightly amiss. A few attempts of changing security settings and making sure you have the right version of Java should fix the problem.