Reduction in the window during the launch external programs

Good day, I ask a small question.

I enabled the external player, PowerDVD and TheaterTek, by pluging Advanced launcher, whenever I launch any player screen XBMC is reduced to the window and then throw the player normally full screen. Then when I go out of the window of XBMC player remains, as it should be, in full screen.
So the problem is only when opening any external player.
In the settings Sitema> Video Output I set "Use a window full screen rather than a true full screen".

Any advice, thank you.