Right click on My Computer>Manage>servicies and apllication>servicies now you will get all the servicies in righat pane then choose RPC in general option you will find startup type in that you have to select disabe.
Windows XP Service Packs are collections of updates, fixes and/or enhancements. You can learn more about Service Packs below.
http://en.wikipedia.org/wiki/Service_pack
A "Windows Service" is an application that is controlled by the Service Control Manager. Services are special types of applications that typically run "in the background" with no user interface. The...