Allright, I've updated the PATH file, but I still can't use 'javac'.

Is there anything else I need to do to be able to compile a program?

Try running javac from the directory where it is installed. For example, if you installed j2sdk into a directory named c:\j2sdk1.4.0, then javac will be in c:\j2sdk1.4.0\bin. Enter the command "cd c:\j2sdk1.4.0\bin" Then enter "javac" You should not get the "bad command" error - you should get a display of the command options for javac.

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