Safest way to get processor ID or some hardware info

Question

I need to get any info to identify a machine and what I was using so far was the following:

    internal static string GetProcessorId()
    {
        try
            


        

Answer 1

For a small tool I wrote (Windows Forms .NET 2.0), I needed something similar.

I wrote a helper class that simply uses some common information like HDD serial number through PInvoke of the GetVolumeInformation function.

This is by no way really safe or bullet-proof, but accurate enough to fit my needs.

(If you are interested this is the tool, if I'm allowed to link to)