This is all Java , so everything should work on Windows just the same. Just make a full disc search for all *.jar files and you'll find multibit.
no multibit*.jar exists on the machine -
I have lots of %appdata%\local\temp\tempNN.jar - when I load Temp14.jar, Multibit opens. But extracting it doesn't show the folders/files i'm looking for (folders include ch/com/i18n/images/javax/lib/...)
The only other .jar file related to multibit is c:\program files (x86)\Multibit-0.5.18\uninstaller\uninstaller.jar
no more wild goose chase for now.