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What is the difference between Java Auto Update and "JRE Auto-Download"?
Posted on 2011-03-17
Greetings -
I'm going to be deploying a Group Policy Preference item to disable the Java Auto Updates feature throughout my enterprise. I've found that this can be done by creating a DWORD registry value at HKLM\Software\JavaSoft\Jav
That's great, and it takes away the "Update" tab in the Java UI under Control Panel. However, under Advanced options, which every user still has access to, there is a feature labeled "JRE Auto-Download". What is this and how does it differ from Java Auto Updates?
This option does not get changed when I set the registry value I mentioned above. I'm wondering what the difference is and if both need to be set in order to stop Java from updating itself.
See the following screenshot for details:
java-options.JPG
I'm going to be deploying a Group Policy Preference item to disable the Java Auto Updates feature throughout my enterprise. I've found that this can be done by creating a DWORD registry value at HKLM\Software\JavaSoft\Jav
That's great, and it takes away the "Update" tab in the Java UI under Control Panel. However, under Advanced options, which every user still has access to, there is a feature labeled "JRE Auto-Download". What is this and how does it differ from Java Auto Updates?
This option does not get changed when I set the registry value I mentioned above. I'm wondering what the difference is and if both need to be set in order to stop Java from updating itself.
See the following screenshot for details:
java-options.JPG
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Auto-download is for allowing the browser to initiate the downloading of a particular jre to run an applet or web start app.
Auto-update is to update an already-installed jre
Auto-update is to update an already-installed jre
Auto Updates enables Java to regularily check for the latest version of java and install the latest version when it becomes available.
Java in the browser also has the ability to request what version of Java it needs to run. If the required version of java is not available the setting "Always Auto-download" enables the browser to download and install a new JRE (so you end up with multiple versions installed)
Some background on setting these options here
http://community.sagecrm.com/user_community/b/sage_crm_news/archive/2010/11/10/staying-up-to-date.aspx
Java in the browser also has the ability to request what version of Java it needs to run. If the required version of java is not available the setting "Always Auto-download" enables the browser to download and install a new JRE (so you end up with multiple versions installed)
Some background on setting these options here
http://community.sagecrm.com/user_community/b/sage_crm_news/archive/2010/11/10/staying-up-to-date.aspx
Thank you for the replies. They both make sense.
Are either of you aware of a way to configure the "JRE Auto-Download" functionality either by a registry key or some other setting? I'd like to dsable this functionality as well as the Java Auto Updates.
Are either of you aware of a way to configure the "JRE Auto-Download" functionality either by a registry key or some other setting? I'd like to dsable this functionality as well as the Java Auto Updates.
Is deployment.properties a file that exists on a per-profile basis or is there path that I can use that will encompass the entire machine?
Thank you very much for the prompt replies and all the info. If I create a system-level file, do settings in it add on to the profile-specific version or is a taken as a complete "override" of the profile-specific version?
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