-# Set this to a location where the platform classes included with Java SDK version 1.4 (not later)
-# have been installed. This is typically the installation root of the JDK followed by
-# 'jre/lib/rt.jar'
-# Mac users, this should be set to:
-# JDK1.4-classes=/System/Library/Frameworks/JavaVM.framework/Versions/1.4/Classes/classes.jar
+# Set this to a location where the platform classes included with Java version 1.4 (not later)
+# have been installed. If you installed a full JDK, this is typically at 'jre/lib/rt.jar'
+# under the JDK installation directory. If you just installed a JRE, it is typically at
+# 'lib/rt.jar' under the JRE installation directory.
+#
+# Windows users: typically Java will be installed in a subdirectory of C:\Program Files\Java
+#
+# Linux users: installation directory varies, but is typically under /usr/local or /usr/lib
+#
+# Mac users, the Java 1.4 classes are at:
+# /System/Library/Frameworks/JavaVM.framework/Versions/1.4/Classes/classes.jar