XnView Software

Could you advise, is it possible to run the slideshow at the windows 8/7 desktop, as a wallpaper?
I mean, instead of the standard windows wallpaper

Or, if not possible now, do you think this possibility seems interesting and might be added somehow soon?

And, in addition, I would also ask for the ...

Please help to get a solution of the following: I need to disable audio output while playing the video slideshow

The reason why it is needed:

I am planning to run on the win 7 desktop the mixed photo and video slideshow. And the xnview seems to be the best tool for this.
This photo-video ...