43b7af74_vices_List___Overclockers_Club__Notes
[Service Name] DHCP Client [Recommended Setting] Manual/Disable* [Notes] 
Receives a Dynamic IP address from your DHCP server. If you have a static ip (An ip that doesn't change) then you could turn this service off. If your on 56k or have a dynamic ip on your network, leave it as it is. I believe if you're running PPPoE software for your DSL, you must leave this on. Disable it only if you know that you have a static IP address.
Windows XP Services Removal Guide » Page 2 - Windows Services List - Overclockers Club
Notes