We can't just build it with old .NET, because we use new features from .NET 4.5 like async 
There is a chance, that Launcher will be rewriten to C++, because something wrong is with this .NET na WPF in some players on Windows 7.

There is a chance, that Launcher will be rewriten to C++, because something wrong is with this .NET na WPF in some players on Windows 7.