XP2 GPO: i have never seen this before

hi all,

List below is GPO config for XP sp2, under the testing environment.
I don't know what I'm done, the section of "Security Options" show up the
setting I have never seen.
Is it trigger by another process?

many thanks,

Local Policies/Security Options
Registry Values
Policy Setting
MACHINE\SOFTWARE\policies\Microsoft\windows NT\DCOM\MachineAccessRestriction
"O:BAG:BADA;;CCDC;;;AN)(A;;CCDCLC;;;WD)"
MACHINE\SOFTWARE\policies\Microsoft\windows NT\DCOM\MachineLaunchRestriction
"O:BAG:BADA;;CCDCLCSWRP;;;BA)(A;;CCDCSW;;;WD )"


Administrative Templates
Network/Network Connections/Windows Firewall/Domain Profile
Policy Setting
Windows Firewall: Allow file and printer sharing exception Enabled

Policy Setting
Windows Firewall: Allow ICMP exceptions Enabled
Allow outbound destination unreachable Disabled
Allow outbound source quench Disabled
Allow redirect Disabled
Allow inbound echo request Enabled
Allow inbound router request Disabled
Allow outbound time exceeded Disabled
Allow outbound parameter problem Disabled
Allow inbound timestamp request Disabled
Allow inbound mask request Disabled
Allow outbound packet too big Disabled

Policy Setting
Windows Firewall: Allow local program exceptions Enabled
Windows Firewall: Allow remote administration exception Enabled

Policy Setting
Windows Firewall: Allow Remote Desktop exception Enabled

Policy Setting
Windows Firewall: Do not allow exceptions Disabled
Windows Firewall: Protect all network connections Enabled