HI,
Avast WebShield is crippling IE
Seems related to number of tabs open and downloading objects
Nearly always get “error on page”
pages either show fairly normally; with images missing; part page and part script or occasionally just script.
Terminating WebShield fixes it.
IE7 clean install as here
http://www.ie-vista.com/known_issues.html#pre-install
Avast uninstall, reinstall, update
Ie7 uninstall, reinstall
Any ideas?
Thanks
Well as you can imagine there quite a few regular forum members using IE7, some under Vista others on XP and I can’t recall this problem being reported on the forums.
Whilst I don’t use IE7 I do use a multi tab browser, firefox and I don’t see this happening.
I would have thought this would have been consistent across the board, so there may be some other interaction going on.
What is your firewall ?
Do you have any other security based programs installed ?
What is the error on page that is being reported ?
Have you tried any other browser and does the same thing happen ?
Hi,
Thanks for your reply
Terminating WebShield fixes it.
I have attached an image of this page as rendered with webshield enabled.
I do not think it is anything to do with tabs specifically it’s just that with more tabs open it is worse.
Firewall is ZA free
AVG AS SpywareBlaster SpybotS&D
It was only with ZA Pro, then there have been previous conflicts with its privacy features, this however is usually only seen in pages like logon to yahoo/hotmail, etc and then the conflict caused nothing to be displayed. That shouldn’t be a problem with ZA free.
There is definitely a page formatting error, in the past this was associated with non-ie browsers conforming to standards whilst pages were optimised for IE, now IE7 is more standards compliant there have been some sites where this caused some issues. However, this seems more severe than that.
Do you happen to use a proxy to connect to the internet ?
Whilst I don’t feel this will have an effect it is certainly worth trying to at least confirm your avast installation is good. Try a repair of avast. Add Remove programs, select ‘avast! Anti-Virus,’ click the Change/Remove button and scroll down to Repair, click next and follow. You need to be on-line to do this.
If that doesn’t work try, uninstall, reboot, install, reboot.
Other than that all I can suggest is trying another non-ie based browser Opera or Firefox with the web shield enabled and test the same pages and see what happens.
Last suggestion after all others:
You could disable the transparent proxy for the Web Shield but leave it running and manually set IE7 to use the proxy.
Use a text editor and edit the avast4.ini file, the default installation location is C:\Program Files\Alwil Software\Avast4\DATA\avast4.ini (I would advise you copy avast4.ini before editing it, just in case). Locate the line containing ZoneAlarmCompatibility= change the value to =1. Save the edited avast4.ini file. This can easily be reversed after the test by changing it back to 0.
Manual setup to use the web shield proxy. Whilst the IE tutorials relate to IE6, you should hopefully be able to find the same in IE7.
For IE - broadband users: - Tutorial - Web Shield Proxy Set-up for IE
For IE - dialup users - Tutorial - Web Shield Proxy Set-up for IE (Dial-up)
For Firefox users - Tutorial - Web Shield Proxy Set-up for Firefox
I uses Webshield with IE7 and it works fine. Check your firewall rules
Hi David
Thanks
Firefox is the same.
Just going to try the last suggestion.
Forgot to mention that on each refresh the same page displays differently if that’s any help.
james: thanks but this is not a firewall issue :-
hmm…going to disable firewall just in case 
OK firewall ruled out
I am fairly sure that images on the page are the problem
Regards
Hi David
“Do you happen to use a proxy to connect to the internet ?” no.
This text does not exist in the .ini (also searched the alwil folder) “ZoneAlarmCompatibility”
Also searched the alwil folder
Regards
Extract from my avast4.ini
[WebScanner]
EnableLogging=0
AutoRedirect=1
HttpRedirectPort=80
LoadIsapiFilters=1
ISAPIFilter1=ashWsFtr.dll
IgnoreAddress=
IgnoreLocalhost=1
ZoneAlarmCompatibility=0
Optin=1
Just to show you the ZoneAlarmCompatibility line
This siunds like an issue that requires feedback from the ALWIL team
Alan here’s mine
[WebScanner]
AutoRedirect=1
HttpRedirectPort=80
LoadIsapiFilters=1
ISAPIFilter1=ashWsFtr.dll
IgnoreAddress=
IgnoreLocalhost=1
[AAVM]
EventLogAnalysed=1
CheckFloppies=0
CheckCDRom=0
CheckRemovables=0
ShowTaskbarIcon=1
AnimateIcon=1
CheckFullScreenApps=0
[MailScanner]
There most certainly should be a zone alarm compatibility line since you are using Zone Alarm free it should be ZoneAlarmCompatibility=0 so you should edit the avast4.ini file and add that line to the [WebScanner] section. This should retain the avast web shield transparent proxy and you shouldn’t need to manually set the browsers to use it.
With that missing line it may be that your installation wasn’t a complete success.
Did you try the avast repair or reinstall as suggested before ?
Download the avast! Uninstall Utility, find it here and save it to your HDD so you can find it later.
Uninstall using add, remove programs, reboot, run the uninstall utility, reboot, Install avast, watch out for the compatibility question, answer No, after the install completes reboot.
Hi David
Thank you for your help.
This is from here.
http://forum.avast.com/index.php?topic=18499.0
Tech
avast! translator
avast! Überevangelist
0 is used for ZoneAlarmPro (turn off the transparent proxy mode: you need to manually configure your browser to access Internet).
1 or nothing (deleting the line) is used for ZoneAlarm free (default value, turn on the transparent proxy mode, you don’t have to change anything else in the browser to access Internet).
This is from here, the opposite.
http://forum.avast.com/index.php?topic=1647.msg15960#msg15960
???
ZoneAlarmCompatibility 1 Turns on the compatibility WebShield with ZoneAlarm Professional version, i.e., disable the web shield transparent proxy mode with ZoneAlarm firewall because the cookie blocking features of ZoneAlarm is being used. The default is 0 (the value even exist in the default avast4.ini file) in order to turn off the compatibility mode with ZoneAlarm, i.e., the user has ZoneAlarm free firewall and WebShield works transparently. WebShield should be restarted (or whole computer in case of Win98) if this value is manually changed in avast4.ini file.
“Did you try the avast repair or reinstall as suggested before ?” repair. I did reinstall previously. I will try reinstall with method above. Can you install in safe mode?..with networking?
Regards
This info was incorrect and I’ve posted there the correction a long time ago…
So, the correct info is this one:
http://forum.avast.com/index.php?topic=1647.msg15960#msg15960
Sorry but that first link is wrong (as Tech has confirmed), and the correct one is the second understanding avast4.ini link, which was edited on 28 Aug 2006 which is later than one you quoted.
Tech acknowledges the first was wrong in, http://forum.avast.com/index.php?topic=18499.msg191128#msg191128.
So if you are seeking something out on the forums and there are further pages to the topic it would be worthwhile to also read those as the initial values given were corrected.
The whole issue of zone alarm compatibility is easy to at first sight misunderstand:
Ignore the what is what for the moment and just think 0 = off and 1 = on, then think what is on of off, the zonealarmcompatibility is on or off. Now think how does avast achieve this compatibility, by disabling the transparent proxy. So to disable the proxy you need to have the zonealarmcompatibility=1 and to use the transparent proxy it should be 0.
The problem is understanding switching on (=1) a positive act to disable something and unfortunately it is too easy to thing of switching on or switching of the proxy, rather than switching on or off the zone alarm compatibility and why you are doing it, ZA Pro compatibility on (1), ZA Free compatibility off (0). Don’t think of the consequences of switching on or off compatibility mode just why you need to do it. I hope it is now as clear as mud ;D
OK, thanks Dave and Tech.
That is what I would assume. Compatibility Y/N 1/0
The info came from the top result on google for “ZoneAlarmCompatibility” and I had to ask.
More info, after reinstalling avast in safe mode (using the clean up tool you linked to) everything worked fine.
Run LadbrokesPoker and all messed up again. ???
Using ProcessGuard, and Ladbrokes only has permission to run.
Any idea what could be corrupted and how?
The latest Avast must not write the ZA stuff in the .ini if using ZA free edition as it is still not there and seems OK to delete it if using ZA free.
fyi ladbrokes is a reputable company.
Thans again for your help and time
Regards
Isn’t ProcessGuard blocking avast?
I would take a look at processguard that can really get in the way of all sorts of installations. What have you got it protecting ?
I honestly can’t see a reason for trying to install avast from safe mode, because if you install avast normally and boot into safe mode, avast isn’t running until you manually start it. So based on that I don’t know what the result of a safe mode install would be.
I gave up on the free version of it some time ago so I haven’t looked at it in some time.
You could simply try to enter the line ZoneAlarmCompatibility=0 to the [WebScanner] section.
What does LadbrokesPoker do, what does it run, are you sure it is compatible with IE7 ?
Some time ago in the thread that you found via google, I said I thought that like many other default values in avast they aren’t entered in the avast4.ini file, so I thought the same would be true of the ZA Compatibility (ZAC) value. The reason I thought this was ZAC value 0 means transparent proxy enabled which is the default state for the proxy. This however, was proven wrong, a) because ZA may not be your firewall and if there is no ZAC value and avast detects it at boot it will ask the question again.
Now it has been talked about to see if the ZAC check could be improved, if it were ZA Pro or Home and only ask the question if it was ZA Pro. I don’t know if this has been implemented or not. I am to a degree a ‘if it ain’t broke don’t fix it’ man, since I can’t confirm the ZAC line absolutely must be in the avast4.ini if you are using ZA I can’t give a definitive answer.
Hi,
No, and they have been happy together for several months.
I honestly can't see a reason for trying to install avast from safe modeWorked a couple of years ago with AVG
You could simply try to enter the line ZoneAlarmCompatibility=0 to the [WebScanner] sectiondid that, no change
Now it has been talked about to see if the ZAC check could be improved, if it were ZA Pro or Home and only ask the question if it was ZA Pro. I don't know if this has been implemented or not
ZAC question wasn’t asked so I expect so
[What does LadbrokesPoker do, what does it run, are you sure it is compatible with IE7 ?Poker site. LadbrokesPoker.com what does it run ? please clarify Yes, and same prob with firefox
This from set up log
vrb/sys Starting service avast! Web Scanner
vrb/sys Service avast! Web Scanner started, errcode: 0x00000420
Any use?
Here are the errors renamed from .ws.ori to .txt
Found it in …Alwil Software\Avast4\DATA\log
Thanks
sputnik365 said:
The latest Avast must not write the ZA stuff in the .ini if using ZA free edition as it is still not there and seems OK to delete it if using ZA free.
It appears to me too that something is interfering with the proper processing of avast for sputnik365.
I have a WinXP SP2 system which is running the most up to date avast. I was running an out of date ZA Free. I just installed the most up to date ZA Free on the system. For testing purposes I deleted the line in my avast4.ini file:
ZoneAlarmCompatibility=0
On restarting the system avast (as expected and as reported in other posts in the forum) gave the pop-up warning about ZoneAlarm and asked me to make a choice. I responded with the correct answer of “No” and avast immediately added to the avast4.ini file the line:
ZoneAlarmCompatibility=0
and, as expected, all browsing poceeds normally. I have no problem accessing the ladbrokespoker.com site with IE7.
me too, I hope
ZA v 6.5.737.000 set to auto update
Avast v 4.7 home ditto
The trouble occurs during and after running the downloaded poker client.
And affects browsing generally.
As I said, after clean install of avast everything is fine till I run the poker client.
I have never had the popup.
It is not IE specific.
Going to try your test
Regards