I use the freeware version of Zone Alarm. I have the security settings maxed out. I leave my computer on during the day, even when I am away. Is there any reason to use the locking program, which prevents data from entering or leaving my system, via the internet. Or, am I secure enough without it. The reason I ask is because I usually have to re-boot after I disable the locking option to use Outlook Express again. Thank-you for taking the time to review this.