ZapDropbox is a software that allows to change your wallpaper mode client / server, imagine for example, change the wallpaper of Grandad and Grandma computer displaying the recent photos of their (s) small (child (s), and in addition you have the same photo on your wallpaper ! ZapDropbox can operate in "Stand-alone" mode is also the default mode! But the goal is to configure mode "Client / Server". ". Either by using the same Dropbox account on multiple computers, or with multiple accounts and sharing a folder with friends or family.