Milsoft - Windows BootScreen replacement tool. Replace the default BootScreen in Microsoft Windows XP and 2000 with any image. - http://www.milsoft.net/
Screen Booty - Change/edit the Startup, Shut Down and Wait Screens in Windows 95/98/NT/ME/2000/XP. - http://www.screenbooty.com
WinScreens Selector and Randomizer - A program to randomize you Start Up, Waiting, Shut Down screens and your wallpaper. Will automatically change your screens every time your computer starts up uses JPG, JIF, GIF, BMP, DIB, RLE, TGA and PCX formats as wallpaper files. - http://home.planet.nl/~kampf011/gwobbel/content.php-K3SK5.htm
Nagarsoft - Developer of desktop utilities that include Logo Organizer 2000 that lets you organize and change your start up and shut down screens. Will converts any GIF, JPG or BMP file to a standard logo file, and supports animated logos. - http://www.nagarsoft.com/
CT Logo Changer - Easy to use logo manager for your start up and shut down screens. It will back up your originals and let you save ten more logo sets for easy one button installation. - http://camtech2000.net/Pages/CTLogo.html
Dementia Software - LogoCycler lets you easily manage and automatically cycle your startup, wait, and shutdown screens. Automatic color correction and scaling for logos and see your startup screens animate. - http://www.dementiasoftware.com/