Hey that reminded of something I was workign on a while ago....ADSI!!! 
Or Active Directory Service Interface. With ADSI you can create/delete users and user info, as well as create/delete/update mailbox information. The problem is how to get kixtart communicating with ADSI. But ADSI supports Visual Basic Scripting, so it shouldn't be impossible. I would be worth a look, because it is really a powerfull toy. Read more about it here: http://www.microsoft.com/windows2000/library/howitworks/activedirectory/adsilinks.asp If you find out how to use it with kixtart, please post some examples
