是否可以以编程方式更改用户的屏幕保护程序和/或桌面背景？

I have been asked to standardize the screen saver and desktop background used by everyone in my company and, aside from going around to each PC individually, I'm looking for a programmatic way to accomplish this. I am not a systems admin, so have never crossed this bridge before. It is also worth noting that most PCs are running Windows XP, however some are Windows Server 2003 and a few are Vista.I have been asked to standardize the screen sav