Which OSes is your launcher available for?I have made for it a separate 7z file which includes the SourcePort from M-HT and a launcher written by me + some SoundFonts and Bassmidi.
And it also includes FFPlay. This allows the videos to be played in full-screen and does not need to use the SDL player.
The Lauchner makes configuring the CFG file easier.
Also you can choose the language so freely and still have all versions on it.
And also the demo can be activated as a feature.