[Bug 41565] WMI error in object Win32_ComputerSystemProduct, property UUID

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=41565

--- Comment #4 from Angel <atraversi at gosierra.com> ---
(In reply to Hans Leidekker from comment #3)
> (In reply to Angel from comment #2)
> > (In reply to Hans Leidekker from comment #1)
> > > Does your app fail because it gets a null UUID?
> > 
> > My app needs to have a unique ID on each PC, because it is used in a
> > licensing system
> 
> Can you rely on getting a unique ID on Windows? The documentation for
> Win32_ComputerSystemProduct.UUID says that a string of all zeros is returned
> when a UUID is not available. This suggests that you can't, but maybe in
> practice it is always available.

Actually my ID is a mix between UUID mensioned, the Volume serial number of
drive C and other IDs, but I will not go into detail because it is confidential
and does not make the problem. This combination never gives null (or strings
with zeros) on a real or virtual PC with Windows.

Instead, the opposite happens with Wine: for example, the volume serial number
of any drive is always 0000. Then combine the two Ids is always the same on a
Mac with Wine and that's a huge problem for me. And this, with a real Windows,
this does not happen

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