I'm using ZoneAlarm 7.0 with CCleaner 3.04 and it keeps trying to access various websites, sending packets outwards. I don't really trust CCleaner, downloaded it from CNet.com(/Download.com) and have had a trojan virus from a FLV converter there before. Sorry to reply 3 years later but I thought I'd share this - ZoneAlarm is flagging CCleaner as attempting to access the net whenever it is loaded... it's trying to access Facebook, chinese servers, google analytics etc.