I installed the upgrade this morning (clean install). I left the security alert on, and since this morning (approx 13 hours), I have had over 1100 attempted intrusions. The alerts refers me to the page that tells me ZA has blocked access to port 139 on my PC.

Is this number normal and what is port 139 for?

Thank you.

Operating System:Windows XP Pro
Software Version:7.0
Product Name:ZoneAlarm Internet Security Suite