Having a bright, blue wallpaper for day use and a darker, reddish wallpaper for evening/night is useful stay in synch with the real time of day. So, i wanted my windows xp machine automatically switch to the day wallpaper from 7-20 and to night from 20-7 hours. The following batch script does this, without any add-on software. To use, copy-paste the file and store it to your scripts directory (e:\etc in my case).

Advantages:

• No additional software (apart from the script) has to be installed
• No additional load on the computer by a desktop switcher, except from the tasks that you define yourself

Notes: directly use a jpg file as a windows wallpaper (the settings dialog creates a bmp file behind your back!).

• Configuration is by changing the set … variable at the top of the file
• Test by calling the batchfile
• To automate the wallpaper switch:
  • make a link in the windows autostart folder
  • add an hourly task to the task manager (or even cleaner, two tasks at the switch times (7:00 and 20:00)

~~LINKBACK~~