1) Click the Start button and select "Run"
2) In the "open" field, type regedit and click ok
3) In the registry editor, navigate to HKEY_USERS\.DEFAULT\CONTROL
PANEL\DESKTOP and double-click the string "wallpaper"
4)Enter the full path and filename of the .bmp image that you want to use as background (the image must be in .bmp format)
5)Click "ok" and close the registry editor
6) The changes take effect as soon as you log off and on again.
If you change the string HKEY_USERS\.DEFAULT\CONTROL PANEL\DESKTOP\TILEWALLPAPER to 1 instead of 0, you will get a tiled effect with the bitmap .
