The IDL workbench, IDL Help and ENVI Help always require a 32-bit JRE. Note: 64-bit Windows may only have a 64-bit JRE installed, but not a 32-bit JRE. Note: If your system already has JRE version 5.0 update 11 32-bit (or later), proceed to configuring ENVI Help initialization file to use the installed Java version. Download and install the Java Runtime Environment ( JRE) version 5.0 update 11 32-bit. Note that administrative privileges may be required to complete these steps.ġ. If attempting to start ENVI 4.6.1/4.6 Help on Windows fails with an error or you receive no response try the following steps. The reason that ENVI 4.6 and 4.6.1 Help does not run is that, not only does it require Java 5.0, it specifically requires Java 32-bit to be installed. There is no error message most of the time. SSC has had success getting ENVI 4.6 and 4.61 running on 64-bit Windows system with Java 6 64-bit, but the common issue is that ENVI Help does not start. The fundamental issue is that ENVI 4.6 and 4.6.1 require an old version of Java to run the help files (5.0 Update 11 is mentioned). The problem is only partially documented by ITTVIS, here: If you decide to customize a JRE installation, such as disabling third party sponsor offers or changing Certificate Authority roots, you need to do that customization on both installations.Most commonly seen on a Windows 圆4 machine running Java 6 64-bit- ENVI and IDL (64-bit) both load fine, IDL Help loads fine, but ENVI Help does not start. If you choose to use both, please plan to upgrade both at each scheduled Critical Patch Update or as prompted. The 64 and 32 bit Java installations are separate from each-other. To do that, I also changed my browsers around to use the 64 bit version as the default and installed a separate 32 bit Java specifically for my Firefox client. In the above examples on my system, I have chosen 64 bit each time. On my system, I open them with my 64 bit Java. On my system, I use my 64 bit installation. The JAVA_HOME environment variable, if set, should point to the preferred Java.The PATH environment variable, to ensure that the preferred Java path is listed first.inside the JRE folder) must be made to both Java installations: “Program Files” as well as “Program Files (x86).”Īdvanced Windows users that run local Java programs may want to check the following attributes as well: C:\Program Files (x86)\Java\jre8 – The 32 bit version, used currently by browsers like Firefox and Chrome.Īny configuration changes made to the runtime itself (e.g.C:\Program Files\Java\jre8 – The 64 bit version, available for local processes and 64 bit browsers like Internet Explorer (64 bit).When running both 64 and 32 bit versions on a Windows client, there will be two installations: The relevant plugins will be available for both browser types, and system-wide configurations like Deployment Rule Sets will automatically apply to both If you cannot choose or do not know which you should choose, you can run both the 64 bit and 32 bit Java on the same computer. Most users in managed environments should choose which browsers and runtimes to use – managing one installation is easier than two. When you have a choice, there are many benefits to choosing 64 bit. In most cases, users of 64 bit Linux should use 64 bit Java. Linux is similar to Mac in that most browsers are already 64 bit.Users should use the 32 bit Java to run inside Firefox. Mozilla Firefox on Windows is 32 bit, showing 64 bit as a Tier-3 platform.Users should use 32 bit Java and plan to use 64 bit Java later. Chrome on Windows is currently 32 bit with plans to use 64 bit.Most Mac applications are 64 bit, in particular the Safari and Firefox browsers.Users should match Java to the version they use, or use both Java versions. Internet Explorer provides both a 32 and 64 bit executable.Generally speaking, 64 bit browsers run only 64 bit plugins and 32 bit browsers run only 32 bit plugins. Users that run Applets and Web Start applications through web browsers should choose the version of Java that matches their web browser. The site will auto-detect the web browser and serve the appropriate download.įor an explanation of how the website makes that determination, please see " Which Java download should I choose for my 64-bit Windows operating system.” Java with 64 and/or 32 bit web browsers Getting the right versionĮnd-users should visit and click the Free Java Download link. Users can even run both side-by-side for 64 bit operating systems. Java is available on Microsoft Windows in 64 and 32 bit versions, allowing users to get the appropriate version for their system. The Java Platform was designed to allow applications to run on different hardware stacks and operating systems without changes.
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