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wrote in :


This is a new one on me, and very puzzling. If anyone has any
ideas, PLEASE chime in.

I have a client with a Windows XP Pro, SP3 notebook. A couple of
weeks ago, they could no longer connect it to their DHCP server.
In trying to find the problem, I did find that it had a root kit,
AV killer, which I think I got rid of. However, when I start the
system, the DHCP client service will not start. It is set to
Automatic. As near as I can tell, the dependency services/drivers
are going. It just won't start on it's own. If I go to the
services console, I can start it manually.

I have tried the published procedures for repairing the Winsock
and the TCP/IP stack. No help.

The problem exists for both the wired and the wireless
connections. I have tried uninstalling both of those and letting
them reinstall; still no help.

There was a post virtually identical to yours in the Microsoft
Forums.

http://social.answers.microsoft.com/Forums/en-US/xpnetwork/thread/cc08d289-4ede-4fca-bd7c-bf63daf6b8ad

The poster was able to solve his problem using the
procedure at the following URL:

http://www.geekstogo.com/forum/Rootkit-help-atapi-sys-t270282.html&p=1776132#entry1776132

HTH,
John