License key for Application

[George1111]

I have buolt an excellent licensing key system which works well on desktop pc's.

Basically I run an algorythm on the Hard Disk Serial Number and the Customer Name

While this is not totally brilliant, it seems to work really well (on desktop machines or machines with real hard disks)

Now that we come to Tablet PC's, I have found that the Serial Number of the "DISK" which is normallyan SSD is the same from one machine to the next - so all unlock codes end up the same

Any ideas on making a unique code for each machine I install my application on ?

[Cimperiali]

Even if there might be matters in retrieving serials, from hdd to cpu to motherboard, first try following suggestments listed here:
http://social.msdn.microsoft.com/for...a-afff0b620156

if ypu would try with different data to use as a check, like the processor serial (CPU serial) have a look at these threads:
http://www.codeguru.com/forum/showthread.php?t=307205
http://www.codeguru.com/forum/showthread.php?t=372498

For motherboard serial look at:
http://social.msdn.microsoft.com/For...-6843308f9e54/