What is jqs.exe?

jqs.exe is part of Java(TM) Platform SE 6 U13 and developed by Sun Microsystems, Inc. according to the jqs.exe version information.

jqs.exe's description is "Java(TM) Quick Starter Service"

jqs.exe is digitally signed by Sun Microsystems, Inc..

jqs.exe is usually located in the 'c:\program files\java\jre6\bin\' folder.

None of the anti-virus scanners at VirusTotal reports anything malicious about jqs.exe.

If you have additional information about the file, please share it with the FreeFixer users by posting a comment at the bottom of this page.

Vendor and version information [?]

The following is the available information on jqs.exe:

PropertyValue
Product nameJava(TM) Platform SE 6 U13
Company nameSun Microsystems, Inc.
File descriptionJava(TM) Quick Starter Service
Internal namejqs
Original filenamejqs.exe
Legal copyrightCopyright © 2004
Product version6.0.130.3
File version6.0.130.3

Here's a screenshot of the file properties when displayed by Windows Explorer:

Product nameJava(TM) Platform SE 6 U13
Company nameSun Microsystems, Inc.
File descriptionJava(TM) Quick Starter Service
Internal namejqs
Original filenamejqs.exe
Legal copyrightCopyright © 2004
Product version6.0.130.3
File version6.0.130.3

Digital signatures [?]

jqs.exe has a valid digital signature.

PropertyValue
Signer nameSun Microsystems, Inc.
Certificate issuer nameVeriSign Class 3 Code Signing 2004 CA
Certificate serial number29abbfb304a781829fd1e62c773a4aff

VirusTotal report

None of the 50 anti-virus programs at VirusTotal detected the jqs.exe file.

None of the 50 anti-virus programs detected the jqs.exe file.

Folder name variants

jqs.exe may also be located in other folders than c:\program files\java\jre6\bin\. The most common variants are listed below:

Hashes [?]

PropertyValue
MD5890369aed0dde1a98f09f7dc239ca2bd
SHA256a878419c2a20551075a4148a521deceeecb0fa32fbe71c92f25a3ccf6b24f26e

Error Messages

These are some of the error messages that can appear related to jqs.exe:

jqs.exe has encountered a problem and needs to close. We are sorry for the inconvenience.

jqs.exe - Application Error. The instruction at "0xXXXXXXXX" referenced memory at "0xXXXXXXXX". The memory could not be "read/written". Click on OK to terminate the program.

Java(TM) Quick Starter Service has stopped working.

End Program - jqs.exe. This program is not responding.

jqs.exe is not a valid Win32 application.

jqs.exe - Application Error. The application failed to initialize properly (0xXXXXXXXX). Click OK to terminate the application.

What will you do with jqs.exe?

To help other users, please let us know what you will do with jqs.exe:



What did other users do?

The poll result listed below shows what users chose to do with jqs.exe. 73% have voted for removal. Based on votes from 15 users.

User vote results: There were 11 votes to remove and 4 votes to keep

NOTE: Please do not use this poll as the only source of input to determine what you will do with jqs.exe. Only 15 users has voted so far so it does not offer a high degree of confidence.

Malware or legitimate?

If you feel that you need more information to determine if your should keep this file or remove it, please read this guide.

Please select the option that best describe your thoughts on the information provided on this web page


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Comments

Please share with the other users what you think about this file. What does this file do? Is it legitimate or something that your computer is better without? Do you know how it was installed on your system? Did you install it yourself or did it come bundled with some other software? Is it running smoothly or do you get some error message? Any information that will help to document this file is welcome. Thank you for your contributions.

I'm reading all new comments so don't hesitate to post a question about the file. If I don't have the answer perhaps another user can help you.

Roger Karlsson writes

3 thumbs

From http://www.java.com/en/download/help/quickstarter.xml:

What is Java Quick Starter (JQS)? What is the benefit of running JQS?
This article applies to:

* Platform(s): Windows 2000 , Windows XP
* Browser(s): Internet Explorer 6.x , Internet Explorer 7.x , Mozilla 1.4+ , Firefox
* Java version(s): 6.0

Java Quick Starter (JQS) improves initial startup time for most Java applets and applications. This feature was added to Java in release Java SE 6 update 10 (6u10) and will be available in all future releases.

JQS is enabled by default in Windows XP and Windows 2000 operating systems and is not necessary on Windows Vista as Vista offers its own pre-loading mechanisms. A process called jqs.exe will run in the background in order to allow quick statup. jqs.exe will be loaded after a Windows restart. Instructions on how to disable the JQS and the jqs.exe process are below.

The startup performance improvement is achieved by periodically pre-fetching some of the most heavily used Java files into memory (occupying no more than 20Mb of RAM). Later, when Java is launched, much less disk I/O is required which makes startup much snappier and noticeably faster.

Note: JQS service will perform runtime checks and stop running when a laptop is running on batteries. JQS service will resume when the power cord is plugged in, as performance benefit of JQS is largely dependent on overall system configuration.

Steps to disable Java Quick Starter:

1. Click Start.
2. Click Control Panel.
3. Double click on Java Control Panel.
4. Click Advance tab in Java Control Panel.
5. Scroll to Miscellaneous entry and Expand.
6. Uncheck the check box for Java Quick Starter.
7. Click Ok and restart the system.

# 2 Jun 2009, 22:30

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