This tutorials shows how to delete leftover disabled startup entries in MSCONFIG as well as delete any disabled services you don't want anymore. This is more geared towards Obsessive users like myself that can't stand having files or traces on their computer they don't need.
If you aren't aware of how to alter the startup type of Services or Startup entries please watch my previous two tutorials first:
Computer Maintance Tips - Part 1: WinXP (Security, Speed, Clean):
http://www.youtube.com/watch?v=rS13EMF3M3o
Computer Maintance Tips - Part 2: WinXP (Security, Speed, Clean):
http://www.youtube.com/watch?v=1b80UKCDgi4
Reference Paths/Links:
MSCONFIG Startup Entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg
Service Entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\
Additional Service Information (Black Viper):
http://www.blackviper.com/
Enjoy :)