VERSION_GetLinkedDllVersion bug fix

[William Lahti]

I actually test-ran my version of the patch with VB .NET's installer, which
requires 2K or higher, where the other version was only compile-tested. It
fixed the problem of the installer saying that I needed WIN2K or higher. I
had
actually tried exactly what Andreas Mohr had before coming up with the
version
I submitted, and it didn't work. My config file was set to emulate XP, so I
echoed what MajorSubsystemVersion was. It was 4. Pehaps there is yet another
bug someplace else.

William Lahti