Disable the SP antivirus and firewall functions - and keep XP from nagging about it

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center]
"AntiVirusDisableNotify"=dword:00000001
"FirewallDisableNotify"=dword:00000001
; don't monitor firewall and antivirus
"AntiVirusOverride"=dword:00000001
"FirewallOverride"=dword:00000001