The Z-Cron commands PAPER-SHUFFLE and WALLPAPER allow for automatical changing of the Windows Desktop background (wallpaper).


The PAPER-SHUFFLE command can be used to randomly change the desktop wallpaper according to a specified schedule.

This command randomly selects a picture from the specified directory and uses it as the new background. (The Freeware Version only supports up to 20 pictures. There is no such limitation in the Professional or Server Version.)

Auto Wallpaper

This command can, for example, be scheduled to run in 5, 10, or 20 minute intervals or at explicitly specified times.


The WALLPAPER command changes the desktop wallpaper to a specific image.

Both PAPER-SHUFFLE and WALLPAPER accept images in JPG, GIF, and BMP format.


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