I work on a small network that runs on windows server 2003, and with machines running xp. Is there a group policy that could push a new user name and password to replace our old local administrator user accounts?
I use pspasswd from sysinternals.
http://www.microsoft.com/technet/sysinternals/Utilities/PsPasswd.mspx
Here is a user automating it:
http://forum.sysinternals.com/forum_posts.asp?TID=9469
Edit:
I also just found this which is exactly what you are asking for:
http://www.gilham.org/Blog/Lists/Posts/Post.aspx?List=aab85845-88d2-4091-8088-a6bbce0a4304&ID=505