Win32 Application Error

[Andrej Mitrovic]

It's hard to tell what's going on when we can't see the code for
CWindow. Otherwise your code seems to be the same as the template so
that part should be fine.

Otherwise if you're using multithreading it might be a good idea to
call ExitProcess(result) after PostQuitMessage(), as calling
PostQuitMessage() alone will not terminate any background threads that
you've spawned from D which are looping infinetly.