Need help for Java installation

fengie (fengie)
I am just learning Java, I have a question when I installed the Java SDK1.3. My OS is NT4.0, I installed in the directory of c:\jdk1.3. After I entered the control panel, I added the above installing directory for the configuration of system environment. However, when I run javac command, everything is ok, when I run java command, the following errors was found :
Error opening registry key 'software\Javasoft\ Java Runtime Environment'
Error: could not find java.dll
Error: could not find Java2 Runtime Environment
I know it is possible the Classpath error, could someone help me solve this problem?
2000-10-4 -05:00

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