Trouble including shlobj.h

[Ruggie]

I'm attempting to set a JPG desktop wallpaper via the IActiveDesktop interface but every time I include shlobj.h I get a bunch of "Multiple declaration" errors and the interface is not available without it.

Anyone have suggestions on another way to do this?

I know you can set bmp images via the registry but I'm not sure where the information for ActiveDesktop is kept.
When I search the registry I found
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Desktop\General
with a key Wallpaper that had the location of the last picture I set but when I update it manually it doesn't show up on the desktop.

Any Ideas?

-Ruggie