Fast Wallpaper Changer
You can apply wallpaper using this little tool.1 Active Windows API usage means that it supports only BMP and JPEG files.2
Synopsis
wallchanger.exe
path to the picture
- By drag-n-drop to the EXE
Notes
1 It was better to write it in Assembly. At least, for the admirable execution time.
2 Even more suitable to play on rundll32.