There are many advantages in SP2 with regard to security as well as other
fixes. Much of the code was rewritten to remove the buffer overflow
problems in SP1 and earlier. Before installing SP2 make sure your system
is ready for it. If it is not running properly or there is malware
present, the upgrade won't go well. And always, always have a full and
complete backup of important data. That should be the case at all times,
regardless of whether you plan to upgrade the OS. Here are some links
about how to prepare for SP2 and some info about it.
Installing Service Packs
http://www3.telus.net/dandemar/xpsp2.htm
http://www3.telus.net/dandemar/spackins.htm
Pre-Install, Install, Cleaning Up Afterwards
http://forum.aumha.org/viewforum.php?f=45
What to Know Before You Download and Install Windows XP Service Pack 2
http://www.microsoft.com/windowsxp/sp2/sp2_whattoknow.mspx
Get the Latest Updates and Information from Your PC Manufacturer Before
Installing Windows XP Service Pack 2
http://www.microsoft.com/windowsxp/sp2/oemlinks.mspx
The hard disk space requirements for Windows XP Service Pack 2
http://support.microsoft.com/?id=837783
Download Windows Service Pack 2 Standalone Version
http://www.microsoft.com/downloads/...BE-3B8E-4F30-8245-9E368D3CDB5A&displaylang=en
Order Windows XP Service Pack 2 on CD
http://www.microsoft.com/windowsxp/downloads/updates/sp2/cdorder/en_us/default810.mspx
Using programs and hardware with Service Pack 2 (SP2)
http://support.microsoft.com/default.aspx?scid=fh;ln;xpsp2swhw
Programs that may behave differently in Windows XP Service Pack 2
http://support.microsoft.com/?id=884130
If running Office 2003 make sure you have the latest Service Pack
http://office.microsoft.com/home/default.aspx
Changes to Functionality in Microsoft Windows XP Service Pack 2
http://www.microsoft.com/technet/prodtechnol/winxppro/maintain/sp2chngs.mspx
Windows XP Service Pack 2: What's New for Internet Explorer and Outlook
Express
http://www.microsoft.com/windowsxp/sp2/ieoeoverview.mspx
How to Manage Cookies (IE6)
http://support.microsoft.com/?kbid=283185
How to configure Internet Explorer automatic download prompts on your
Windows
XP Service Pack 2-based computer
http://support.microsoft.com/?id=883255
Browsing Security Enhancements
http://www.microsoft.com/technet/prodtechnol/winxppro/maintain/sp2brows.mspx
Understanding Windows Firewall
http://www.microsoft.com/windowsxp/using/security/internet/sp2_wfintro.mspx
How to use the Security Alert dialog box in Windows XP Service Pack 2
http://support.microsoft.com/default.aspx?kbid=875353