set path=E:\Tools\j2sdk1.4.0_02\
set class_path=.;E:\Tools\j2sdk1.4.0_02\lib\rt.jar;E:\Tools\j2sdk1.4.0_02\lib\tools.jar;E:\Tools\j2sdk1.4.0_02\jre\bib\dt.jar;
D:\>java -versin
Registry key 'Software\JavaSoft\Java Runtime Environment\CurrentVersion'
has value '1.3', but '1.4' is required.
Error: could not find java.dll
Error: could not find Java 2 Runtime Environment.