This also removes the ambiguity with the new 'Pacific Standard Time (Mexico)' timezone.

The core the code remains ANSI, as all the information is stored as ANSI.

IShellLink::GetIDList when it fails to generate a PIDL must set ppidl
to NULL or some applications think it contains valid data.

The dns_* functions expect the input buffer to have space for size 
characters plus the nul terminating character.