Roaming profiles - IE wallpapers

[itinerant]

Got a bit of an interesting one. Not particularly important in the grand scheme of things, just something that's nagging me a little.

 

I recently wrote a Powershell script for cleaning up people's roaming profiles. I've got it to remove various things, including cookies, recent items, Flash and Java cached files, older than a certain amount of days. This looks to have helped a fair amount with the speed of people's logons, but I've noticed that it has removed a number of people's wallpaper. People who have saved images and then set them as their wallpaper haven't been affected, it looks like it's just affected people who set their wallpaper using an image opened in IE. I've checked against these users, and found that the 'Internet Explorer Wallpaper.bmp' located in AppData\Roaming\Microsoft\Internet Explorer is still present.

 

So, I'm guessing that there is another file elsewhere that is linked to this, but I'm not entirely sure where that file would be. My best guess would be either from the Cookies or Recent/Recent Items folders, I can't see the other folders included in my script having anything to do with this.