To do this manual i just pick a html file in the change wallpaper dialog and tada works..
but if i want to do this from code what api calls / reg keys must i change?
Iv tryed this SystemParametersInfo (WinAPI) didnt work and i have found out that "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Desktop\General\Wallpaper" and "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\LastTheme\Wallpaper" are changed to the html page.. but just editing those to from code does not change the wallpaper..