@ricksterto, if you use 1289 build right now (and firewall is still not working), please run this tool: http://public.avast.com/~kurtin/osrbang_x64.exe and click on the red button. This will restart your computer. Please compress (rar/7z) c:\windows\memory.dmp and upload it to our ftp (http://support.avast.com/index.php?languageid=1&group=eng&_m=knowledgebase&_a=viewarticle&kbarticleid=18). I’ll use the dump to recheck several internal structures to see if firewall is really working, or there’s a conflict with other installed application. Thanks.