Hi there, I did this recently in my corporate network of WinNt4 and 2k:
Create a file on each PC in something like C:\WINNT\desktop.reg in this file add:
[HKEY_CURRENT_USER\Control Panel\Desktop]
"Wallpaper"="C:\WINNT\picture.bmp"
"WallpaperStyle"="2"
Make sure the path for the picture is a valid file and WallpaperStyle is "2" (for stretch!). Then create a shortcut in All Users Startup to %WINDIR%\regedit /s C:\WINNT\desktop.reg
This will insert the reg settings each time the users log on (so even if they change the paper it will still revert to the corporate image.
Hope this helps.
Marc Williams, MCP, A+, Network+