#4411
MultiMonitorTool is a multi-display management software developed by NirSoft (i.e.: the only developer of the entire NirSoft: Nir Sofer) for Windows XP and higher. It's portable, compact (less than 1 MB) and very user friendly, and able to monitor each monitor, move program Windows between multiple monitors, set as primary monitor, and has more settings that can be made to monitor screens.

#3211
If you are using dual or more displays, you are likely to encounter the following challenges:
  • How to set different wallpapers or screen savers for two or multiple monitors
  • How to make the same wallpaper display in a perfect way on monitors with different resolutions
  • How to make sure each display has its own customized window, taskbar, etc.