GPO to set wallpaper on Remote Desktop host servers??

I looked at the Desktop Wallpaper policy and MS says it does not apply to remote desktop server sessions.

Are there any other GPO settings I can use to set the desktop wallpaper centered on our Remote Desktop host servers??

I have tried working with BGInfo and it's a waste of time b/c i can NOT find anything that explains what KEY is required to be changed/changeable to have BGInfo set the background when the user logs in (running batch file at login time).

I prefer to use User settings and Computer settings are the 2nd choice.

Thank you, Tom