The following is a list of services that can be set to manual in Windows XP. Keep in mind, this is only a tweaking tutorial.

Right click on your My Computer icon, either on your desktop or in the start menu. Then click manage. Now go to Services & Applications > Services.


SAFE SERVICES TO SET TO MANUAL
WARNING
Services should be set to manual. Never disable a
service. HMOS is not responsible for any data loss, corruption, or
damage to your version of Windows XP.

• Windows Time
  
  
• Secondary Logon
  
• Print Spooler ::: If you do not have a printer
  
  
• Computer Browser ::: If your computer is not on a network
  
• TCP/IP NetBIOS Helper
  
• Remote Registry
  
• Alerter
  
• Distributed Link Tracking Client
  
• Indexing Service
  
• Uninterruptible Power Supply
  
• Upload Manager
  
• Wireless Zero Configuration ::: if you do not use a Wireless adapter
  
• Fast User Switching capability
  
• Internet Connection/Internet Connection Sharing