Avast automatic update only for system administrator

Avast Free Antivirus / Premium Security
1

Windows XP + SP2.
Avast 4.6 Home Edition

NT4-style (no AD) domain with Debian/Samba as PDC
Domain login with username + password is required
Debian/squid proxy+firewall with NTLM auth

Avast proxy settings are correct (“Test connection” is OK)
Automatic iavs udate is on

Problem: avast is updating only if the login user is “Administrator”
For any “normal” user (ia. “bob”) the automatic update dont run. There isnt any red error boxes etc. Manual update runs OK for any user.

I’d like to set up automatic update for all users, but I cant find the problem.
Any idea?

THX
Robert

(Sorry for my poor English)

2

You have to install it as admin and then run it as limited user. As far as i know avast! should operate fully in such conditions ???

3

Check the avast! iAVS4 Control Service Properties. If in the logon tab the options are to use local system account and allow interact with the desktop. It should work for all users as it is not ‘running’ by the Administrator account but with the ‘System’ account.

It’s perfect Robert, don’t worry.

4

I installed Windows without domain (workgroup mode).
I installed Avast (as local admin)
Joined the domain.
Logged in as (not privilegized) domain user.
Update doesnt work.

5

Services – Avast iAVS Control Service – Properties:

http://www.freeweb.hu/kdg70/avast.jpg

6

Please provide more details on ‘doesn’t work’. If you log on as an unprivileged user, and you manually run vps update, does it do anything? Any error/non error window?

Have you checked the setup.log file in setup directory? It does contain lots of details about the process and it should also show the user under which the avast.setup process was run.

Is there any proxy on your system which may be differently configured for admin and for ‘plain’ users?

7

Doesnt work: Avast dont update the virus database automatically.
If I run the “iAVS Refresh” command manually, it works perfectly, no error.

There IS a squid proxy, but it only denies internet access for the users “test” and “guest”. Any other users (admin and plain) have full access. I dont think that its a proxy issue. If my proxy settings are wrong, then why is maual update working?

I will check setup.log tomorrow.

8

So the updates are working.

Since ‘automatic’ updates are just pinging out, you may check if you can ping as a ‘plain’ user.

I’m afraid that since you can actually update as a user, the problem is not in the updater itself, so setup.log inspection won’t reveal anything useful.

Try the pings and let us know.

9

In avast update’s proxy settings, use authorization by username and password, don’t use NTLM.