Include the most specific header documented by MSDN instead.

A few exceptions are needed for sources which include COM header
(directly or indirectly).

This fixes lots of shadow warnings, see
https://github.com/MusicPlayerDaemon/MPD/issues/1150

Include the most specific header documented by MSDN instead.

To make things simpler, AllocatedString is now a non-template class.

To make things simpler, AllocatedString is now a non-template class.

The ones in std have overloads for const char/char.
Signed-off-by: Rosen Penev <rosenp@gmail.com>

Fixes Path::IsNull() checks on Windows.

Reduce I/O overhead.

Reduce I/O overhead.

Move code from ParseCommandLine().