This could be what you're looking for, but I don't know 100% about the not
background change (I use Winwall myself, but that one stays in memory,
unless)
Name: Winwall
Vers: 2.1
Auth: Cristian Rotholz
Site:
http://www.net-session.com/index.php?page=winwall
Down:
http://www.net-session.com/winwall/winwall_setup.exe
Blic: Donationware
Plic: Donationware
Note: To autoshutdown, you have to manualy edit the ini file (see *)
Your other does and dont's can be adjusted in winwaal itself.
Info:
Winwall allows you to change your wallpaper at random or at given time
intervals. It comes with an easy-to-use interface giving you a huge range of
functionality and ensuring only the best quality of wallpaper management.
You can manually add images to your wallpaper list or let Winwall search
your hard drive for supported file types. It is also capable of loading
images directly from the internet giving you the opportunity to use live
feeds from webcams all around the world.
Winwall will cycle through your picture collection and display BMP, JPG, GIF
and PNG images in random or sequential order. It offers numerous switches
for tweaks and adjustments to provide the ultimate in convenience.
Managing and mastering your wallpapers will be a breeze using Winwall.
* <quoting from the helpfile>
Q:
I want Winwall to change my wallpaper only once per session.It should change
the wallpaper at start up and then close itself to save system memory.
A:
Open the patch.ini file which is located in the Winwall directory and turn
on 'Exit on Change'. (ExitOnChange=On) This will force Winwall to exit after
the the initial wallpaper change at start up, thus saving system memory.
Note:
Winwall will be inactive afterwards and needs to be restarted if you want to
use it again. (Remember to turn off 'Exit on change' again)
</Quoting>
Or maybe
Name: Wallmastwer
Vers: 2.4e
Auth: Tropical Wares
Site:
http://www.tropicalwares.com/wallmast.html
Down:
http://www.tropicalwares.net/download/wallmast.exe
PLic: Freeware
BLic: Freeware
Note: I'm not sure about the not changing background, you'll have to try
Info:
WallMaster inherits the basic key features of its commercial brother,
WallMaster Pro. You can program the desktop wallpaper to change at a
predetermined time interval (e.g. every 10 minutes) and customize the
wallpaper position (tile, center, fit to screen, auto fit, or custom)
easily. With all its cool and unique features packed within a simple
easy-to-use interface, mastering your desktop wallpaper has never been this
easy and fast!
MightyKitten