I'd also add that CommandLineToArgvW doesn't do exactly the same thing that the C runtime does to parse arguments. They used to be the same but the C runtime was tweaked in 2008 whereas CommandLineToArgvW was kept the same for backwards compatibility. See http://daviddeley.com/autohotkey/parameters/parameters.htm#W...
Presumably they would have tested extensively for regressions. But I'm not sure what would break that wasn't already broken. It was an obscure undocumented case that was not intuitive.
