I guess that I wonder where all these "extra bits" came from...if you did indeed do a clean install.
As for eliminating items on a system that I cannot see and don't see any detail regarding what is on that system...I myself cannot peer into the unknown.
There are any number of persons who have perceptions about how to modify XP installs so that they result in "more efficient" systems, but I have to laugh at most of them. I'm more in favor of something that can make users "more efficient" in maintaining and protecting their systems in the manner that they need to be.
In any case, take a look at some links you may find interesting:
Black Viper ~ Frequently Asked Questions Index - http://www.blackviper.com/AskBV/askBV.htm#WinXP
Black Viper's Web Site - http://www.blackviper.com/
BlackviperXPSP2 Services - http://www.hss.caltech.edu/~mcafee/Bin/BlackviperXPSP2.pdf
Basic System Maintenance - http://uk.geocities.com/personel44/maintenance.html
Disabling XP Services - http://www.extremetech.com/article2/0,1697,1829414,00.asp
Services Guide for Windows XP, Elder Geek - http://www.theeldergeek.com/services_guide.htm
System Services (Descriptions by MS) - http://www.microsoft.com/technet/security/...e/secmod54.mspx
As for compacting the registry...via a registry cleaner/tool...attempting to do such is not for everyone. That said...
Vilma Software Products, Registry Explorer - http://www.vsft.com/products.htm
ERUNT Registry Backup Tool - http://www.snapfiles.com/get/erunt.html
How to back up, edit, and restore the registry in Windows XP and Windows Server 2003 - http://support.microsoft.com/kb/322756 http://www.informationweek.com/story/showA...cleID=171203805
Others will provide their own opinions...
In general, I find that a clean install of the O/S, followed by dedicated installation of programs, drivers, etc...supplemented by consistent safe computing practices and system maintenance...tend to give users the best possible systems. If I have a system that I think is a mess (for any reason), I try not to waste time trying to clean up the debris but prefer to just start anew and keep a careful watch on what I am doing and why.