I tried loading Outlook, going to the Exchange Client Extensions add-in section in Trust Center, disabling avast! 4, closing the program, rebooting my computer, opening Outlook, and re-enabling avast! 4, but as soon as I click the checkbox beside avast! 4, the same error message comes up.
I pray that one of the programmers, PLEASE, help us to understand what is happening with the Outlook plugin... :'(
Also possibly worth noting (forgot to mention this in my previous post), I am running ZoneAlarm 7.0.483.000 (the free edition) in conjunction with avast!. I know there have been some incompatibility issues between the two, however, I wasn't sure if ZoneAlarm would be the cause of this.
There isn't an incompatibility with the free version, only an issue with the Pro.
Since 4.7.892 version of September 25, 2006, avast gets improved detection of ZoneAlarm Pro (to prevent unnecessary WebShield incompatibility warnings). So, if you're using ZA free, you won't see the avast! Web Shield compatibility dialogue while installing/updating avast.
Anyway, if the question appears and you are using ZoneAlarm Free you should click NO, because privacy features are not present in ZoneAlarm Free this will
not turn off webshield transparent mode 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= and delete that line or, if you want to keep this line, set it to
0. Save the edited avast4.ini file.
To do so, maybe you want to temporarily disable the avast self defense module:
1. Right click the 'a' blue icon on system tray.
2. Programs settings > Troubleshooting (tab)
3. Disable self defense module