Windows version autodetection

[Damjan Jovanovic]

Hi

There are some older applications out there, which don't install or
run correctly unless Wine is emulating the correct Windows version
(eg. Windows 9x).

At least Windows XP has the ability to use certain heuristics to make
an educated guess as to which version of Windows the application
expects, and then lie in GetVersion() and behave like that version in
relevant APIs.

Should we do something like that for Wine? It would allow many
applications to work out of the box.

Damjan Jovanovic