Java's old application-compatibility model of supporting multiple side-by-side JRE installations is unsafe and no longer tenable.  Oracle now recommends having only the latest JRE installed and uninstalling all older versions.

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My colleague Shelly Bird , a highly esteemed Architect in Microsoft Public Sector Services, has years of experience in desktop and server deployments.  She has seen what works and a whole lot of what doesn’t.  Now she is bringing her observations...