There are three simple ways to set JAVA_HOME in Windows. This tutorial shows you how to do it manually, from the command line and through the installer.

JAVA_HOME vs PATH Variable Along with the configuration of JAVA_HOME, it is also useful to simultaneously update the operating system's PATH variable. With the PATH, the Java installation's \bin ...

Java has no notion of a "current working directory" per se IIRC - user.dir is not always set to the directory the user started the app from. You can find that however - search in Google groups.

Ah, I see.<BR><BR>I usually try and disable anything I don't need in my start-up, so the Java Panel didn't end up there, meaning I basically never knew it existed.<BR><BR>It was set to cache java ...