First time poster but using Avast for a little over a year.
I, like many others, have been dealing with the Web Shield blocking the browsers from accessing the internet and I think I found another possible solution for a fix.
Im currently running Windows 7 Professional x64 with Avast vers. 5.0.594 .
If you read this thread http://forum.avast.com/index.php?topic=57443.0 and it doesnt work go back to C:/Windows/Temp and see if theres a folder thats labeled avast5. If its there then go back into your Avast UI and turn off the Web Shield, then go back delete that folder (avast5).
If you cant delete the folder due to admin rights then you will have to turn on the Administrator account thats by default turned off in Windows 7.
To do this you must:
Goto the start button
Goto “All Programs/Accessories”
Right mouse click “command prompt” and select “Run as administrator”
Once your in type: net user administrator /active:yes
Log off your current account and go into the Administrator account that should now be visible at the logon screen.
Go back into the C:/Windows/Temp “under the admin account” and delete the avast5 folder
After you have taken the following steps restart the Web Shield and you should be on your way.
Anyone who wants to add to this or post the steps for other Microsoft OS’s feel free to do so.
It didnt give me a problem at all.
Once it was deleted i turned the Web Shield back on and Avast re-created the folder and the browsers were able to connect.
Again, just a guess here, it may have something to do with permissions but I cant say for sure because I havent tried it on an XP machine.