With more and more programs basing installation on specific machine identification numbers I think it would be useful to add in some of the more common parameters used.
One of the main values I see referenced is the hard drive serial number. This can be read currently with a simple 'dir' command from the console. Another value often used is the drive letter where the program or OS is installed (C, D, etc). Occasionally I see checks on the bios data. This command line shows the values often referred to.
wmic csproduct get name, identifyingnumber, uuid
Adding these to the