following the demo and test setup guide (https://cwiki.apache.org/confluence/display/OFBADMIN/Demo+and+Test+Setup+Guide), i downloaded ver 12.04.02, extracted it to a directory, and attempted to run startofbiz.bat from the ofbiz directory (named apache-ofbiz-12.04.02). no file found.
searched for the bat file; found it in tools subdir. ran it. couldn't start java from \bin\java.
set JAVA_HOME and re-ran startofbiz.bat; couldn't find ofbiz.jar. performed dir/s/b ofbiz.jar, file not found.
apparently the ofbiz.jar file doesn't exist.
ofbiz.jar should be included in the download.