Unblocking it should be completely safe since it is a genuine windows process that allows the dns resolving of websites. Blocking it could and probably will disable your internet connection. I have never ran into this problem constantly, I use Outpost Firewall. I would allow it in the program allow list as trusted.
Here is a quote from another forum from someone having the same problem:
This forum has a post with many replies dealing with this EXACT situation. Although replies go back to 2002, the same issue is being stated so no worries there. Check it out if you want some more information: http://www.computing.net/security/wwwboard/forum/272.html
Hope it helps,
Actually, you don't need to unblock it. ZoneAlarm in this case is blocking access to the program from something on the internet. If it was a critical service, ZoneAlarm would unblock it by default.
Personally, I tell ZoneAlarm not to alert me of minor issues like this - it's likely to be something simple like a "ping" from another computer. It's nothing to worry about - it just means that your computer is "invisible" to the untrained hacker, and this is what prevents unauthorised access to your computer.
If I check the "do not show me this again" thing then will it only not show me those (the one in the picture) alerts?
Yes - checking the "Do not show this message again" will stop ZoneAlarm opening the pop-up warnings for all minor events like the ones shown above.
Any major event or program access requests will still open the warnings even if you do check the box.
to remove all alerts except for new programs, open the ZoneAlarm main window, go to the Alerts & Logs link in the menu, and on the tab labelled "Main" switch "Alert Events Shown" to off. this will stop every annoying warning but will still prompt you when a new progrom requests access or changes since it last ran. you can then look at the security logs to see what would have normally been shown on those annoying little alerts.
You can read why here: http://www.nforcershq.com/article5276.html
When it comes to it, ZoneAlarm is actually helping the hackers, not stopping them.
If you want good protection use Outpost or Kerio.