Is this that issue we were told would happen? When Microsoft pulled the Java VM out of XP at the last minute, essentially disabling Java on the XP platform? Everyone was pissed about that one as I recall.

Supposedly, Microsoft would provide a link which allowed you to download the necessary files to get Java running. Perhaps try the Microsoft web site.

Or am I remembering it wrong, was it some other feature they yanked?

If it is the XP/Java thing, I would hope that the InstallAnywhere packager should properly detect and warn the user in that situation. Does JEmplode need to be built with a more recent version of the InstallAnywhere packager?