How do you launch speech recognition on a button click in a Windows Store app?

Question

I have recently discovered the ability to use speech recognition in Windows 8.1. I was wondering how I could, perhaps, on a button click at least launch this application in my Windows Store app to be able to enable speech to text for a user. I am not currently sure of a way to do this, but after doing some digging I read that I might be able to use the Launcher class to launch a Uri to the link for speech recognition. So far I have been unsuccessful. Please, if anyone knows how this can be accomplished, it would be of great value to me.

Here is what I have so far:

private async void LaunchSpeechRecognition(object sender, RoutedEventArgs e)
{
    await Launcher.LaunchUriAsync(new Uri(@"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Accessibility\Speech Recognition.lnk"));
}

Answer 1

Speech recognition is a desktop app. WinRT (Windows Store) apps can't invoke such apps using Launcher class. Launcher class is used to launch files (.lnk files are shortcut which is ultimately a desktop app) & limited set of URIs. Those URIs are WinRT app specific or HTTP, FTP, custom protocol, etc.

Walkthrough: using Windows 8 Custom Protocol Activation