Sorry, let me explain better:

I would like to know if every Windows has a unique number and if it is possible to get it.

I have a software that get Windows number, e.g. 8888-889F to protect my ebooks and as it was discontinued I would
like to use VFP to protect it by I need to link it to Windows number.


Moises



>>Is it possible to retrieve Windows number using VFP ?
>
>

? "Windows " + OS(3) + "." + OS(4) + " " + OS(7) + ", Build " + OS(5)

>
>The values returned by OS(3) and OS(4) are the standard Windows self-identifying numbers, as in 6.1 for Windows 7, 6.2 for Windows 8, and 6.3 for Windows 8.1.
>See: http://msdn.microsoft.com/en-us/library/windows/desktop/ms724832%28v=vs.85%29.aspx