In Windows XP Professional, you have two remote networking features called Remote Assistance and Remote Desktop Sharing. These remote networking features are very helpful in a variety of situations but if you don't use them, it is good idea to disable them to save boot time. You can always enable them later if you want to use them.
1. Open the Start menu, right-click My Computer, and choose Properties.
2.Click the remote tab.
3. Clear both check boxes to disable Remote Assistance and Remote Desktop.
"Windows XP Tips: Stopping Remote Assistance and Remote Desktop Sharing"
Reference : techpraveen.com