Old and new java runtime environment

I have some legacy systems which require java runtime 6 to run. If I try to go about my business and run into a web site that uses java it will complain about the old insecure java version and recommend upgrading to v8. When I do that I find inevitably that it messes up my ability to run JRE 6 at all. Then I have to uninstall jre 8 and finally jre 6 will run again. Is there a good document on how to run JRE 8 most of the time but successfully run JRE 6 as needed? I tried specifying the path at the command line, dragging the jnlp file onto the jre6 executable adding the jre6 path to the environment and on and on. But so far 8 seems to just poison 6 completely.
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amigan_99Network EngineerAsked:
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Sudeep SharmaTechnical DesignerCommented:
I don't think that is possible.

Since JRE 8 is not supporting the SSL2/SSL3 it is near to impossible to get the JRE 6 to work as it support both these vulnerable protocols.

So if you install JRE 8 it would not let JRE 6 to run and I think it is because the way it is designed to be run.

Sudeep
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William FulksSystems Analyst & WebmasterCommented:
We have this same problem at my work and one thing you can do is edit the parameters to make it think it has a different version. You change the djava.vendor property. Here's how to do it:

https://www.all4os.com/windows/easy-fix-for-java-error-oracle-jinitiator-version-too-low.html
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amigan_99Network EngineerAuthor Commented:
I know it's possible because I have a co-worker who has both 8 and 6 running harmoniously on his system. But on my system everytime I load 8 it messes up any opportunity to run 6. Thanks for these suggestions.
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