How to set JAVA_HOME for multiple Tomcat instances?

Question

I have 2 Java Web Projects. One runs on JDK 1.5 and the other runs on JDK 1.6. I want to run both of them on the same computer, but the JAVA_HOME environment variable can on

Answer 1

Also, note that there shouldn't be any space after =:

set JAVA_HOME=C:\Program Files\Java\jdk1.6.0_27