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How many of these things do you have to look up? It may be easier to manually look them up and store those codes with some key-file on your computer (say like putting a serials.cfg file somewhere on...

:P It's my standard answer to anything that can't be done in pure Java. Why do you want to know the serial number of your harddisk and such? It's much easier to try and find that on the hardware...

Unfortunately, that's not possible in pure Java. You can look into JNI, though.