Then set desired time in Image Change Settings (seconds, minutes or hours)
Secondly in Desktop Mode, check Enable and then choose Tiled, Centered, Stretched,
Smart or Custom Position (also X and Y)
In Options check: Show Tray Icon and Hide from Task Bar and Auto Start Show (optional)
Thirdly minimize Slide Show
So now it changes wallpapers automatically ex. every 1 hour. Also whenever you start Slide
Show program it remembers minimize stage and goes to Tray and starts changing wallpapers
automatically