Retrieving CPU or motherboard number?

[Blizna]

Im making some software and need to do precise protection. We decied to let instalation program send some essential PC data to the server to generate the key. Especially useful would be CPU number or so, then different PC couldnt use it. I tried The Big box which has many useful features but there is only general info. Any ideas?

[raytrace]

The CPU Product ID (when you right click on my computer) can be found in the registry at:

HKEY_LOCAL_MACHINE\Microsoft\Windows\CurrentVersio n

Two problems: It is editable. There must be a time when the program doesn't have an assigned key (you can't integrate it into the exe) which is when it can be copied across computers.

The only way to secure a program properly is to generate a key on their computer beforehand then build the program only accepting that key.