- Download the correct 32/64bit version of Java 6u39 for your system. (jre-6u38-windows-x64.exe for 64bit Windows)
How do you know if you have a 32bit or 64bit Windows? Click START, Right click "Computer" select "Properties". It should be listed under system type. Direct Downloads from Oracle (no sign in needed):
- Install on to your computer.
- Edit the mt.cfg file changing the JVM line. Make sure you're using the correct drive letter and file location for your install. These are the most common settings:
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Note: With a new install mt.cfg doesn't exist until you run MapToolLauncher.exe. You can create a new file with that name with notepad or run MapToolLauncher, close MapTool then edit with notepad.
- Start MapTool with "MapToolLauncher.exe"
- Verify your java version in b87 through the Help menu and the "Gather Debug Information" option. The java version will be displayed under Java Information.
These problems were fixed in build 88, but other bugs were generated that were more troublesome. Note that you can use both Java 7 and 6 on the same system. You just need to tell MapTool where to look. Thanks for your patience and I expect this will be resolved in the near future.
Apparently Java 7 version 10 has a bug where if used with MT it will not find the JAR file. You currently shouldn't be using Java 7, but if you get that error, this is why.
There is a related thread that discusses the one-click installation of java 6 with no extra configuration needed. Soon this will be moved to the HOWTO section with directions.
Just noting the latest and last direct links for java 6. I have not tested this with MapTool yet, but I plan to make a 2 minute video showing a fresh install of MapTool. For browser operation, they recommend installing both 32bit and 64bit versions for 64bit systems.