I am trying to install the old Java 2 SDK 1.4.2_18, due to that I want to have it to make sure I am compatible with our build system. However, it always complains that the JVM is running. What shall I do? I have changed the JAVA_home and removed Java from the system path and rebooted. It still think the JVM is running. Any clue what how it is running and from where?