au_.exe???

what is au_.exe?? Norton history says it made 10 modifications to my system? It came up right at the time I was uinstalling something! RISK-LOW! Noron also says it has multiple activities.

 

Another instance would be- C/users/appdata/local/temp/-nsu.tmp/au.exe is preparing to access the internet

RISK-LOW

 

I dought its a virus because this is a brand new computer and I am extremly safe on the net. Could someone just tell me more about this file?

 

ps- its running vista premium sp1