JAVA_HOME undefined, using java from path. For control over exact java version, set JAVA_HOME Exception in thread "main" java.lang.UnsupportedClassVersionError: org/nlogo/headless/Main : Unsupported ...

Trying to use this at work on a Windows 7 machine. Our IT dept refuse to save Rtools at C:\rtools - so it's saved in C:\Program Files\rtools. I have included in intit.vim: let Rtools_path = ...