default ping at shutdown & restart

Hi all,
I hear the default ping at shutdown & restart, like an error is about to pop-up. Can anyone please tell me what this could be ?
I just installed xp and hope its secure.
Here’s my net connections, hope it can help.

IEXPLORE.EXE:1936 UDP 127.0.0.1:1028 :
IEXPLORE.EXE:324 UDP 127.0.0.1:1089 :
svchost.exe:652 TCP 0.0.0.0:135 0.0.0.0:0 LISTENING
svchost.exe:768 UDP 0.0.0.0:1029 :
svchost.exe:768 UDP 0.0.0.0:1049 :
svchost.exe:808 TCP 0.0.0.0:5000 0.0.0.0:0 LISTENING
svchost.exe:808 UDP 111.111.111.101:1900 :
svchost.exe:808 UDP 127.0.0.1:1900 :

It can be a lot. Without knowing more it is almost impossible to tell what it is.
HAv a look in XP’s log file, it may tell us more.