You could do it in GetPrinterDriverDirectory.
??? And if a Windows application simply queries systemdir and adds spool\drivers\w32x86 to copy printer driver files into it (ok, bad design, but I've seen a lot of that stuff in the past), it will still fail... And a native Windows system also comes with these both directories by default...
So I think my patch is closer to the real...
Anyway thanks for your time
Markus