Request assistance binding to Windows dsound.{lib, dll}

[John via Digitalmars-d-learn]

Additionally, remove QueryInterface, AddRef and Release from the 
definition of IDirectSound. Also, interfaces are already 
references, so the definition of LPDIRECTSOUND should be:

   alias LPDIRECTSOUND = IDirectSound;

Note there should be no *.

Regarding any linking errors, it's easier to either grab the .lib 
files from the Windows SDK and convert them with coffimplib, or 
use the m32mscoff switch so you can link with the SDK .lib files 
directly.