Personal note 5: Configure logon UI background in Windows 7

1. Create a new Application (with source files)
2. Place all the wallpapers in the Application folder

The following files (sorted by width-to-height ratio) are supported in the folder:
• BackgroundDefault.jpg
• Background768x1280.jpg  (0.6)
• Background900x1440.jpg  (0.625)
• Background960x1280.jpg  (0.75)
• Background1024x1280.jpg (0.8)
• Background1280x1024.jpg (1.25)
• Background1024x768.jpg  (1.33-)
• Background1280x960.jpg  (1.33-)
• Background1600x1200.jpg (1.33-)
• Background1440x900.jpg  (1.6)
• Background1920x1200.jpg (1.6)
• Background1280x768.jpg  (1.66-)
• Background1360x768.jpg  (1.770833-)

3. Use this script as the quiet install command line

The backgroundDefault.jpg image is loaded and stretched-to-fit when a resolution/ratio-specific background cannot be found. The other resolution/ratio-specific files are self-explanatory

Note.
The images must be less than 256kb in size