User's FAQ

[Lisandro]

DSO EXPLOIT Thanks to Eddy  

A data source object (DSO) exploit is a form of spyware that takes advantage of data binding to gain access to the hard drive of a computer connected to the Internet. Such spyware can be difficult to detect and eradicate, and if it is successfully removed, it often returns.

DSO exploits can affect Microsoft Internet Explorer, Outlook, and Outlook Express. In Internet Explorer versions 5.5 and later, a DSO exploit can operate even when ActiveX controls have been disabled.

[Lisandro]

avast! error codes
42000	UnknownError
42001	License is valid/expired
42002	License is valid/expired
42003 AVAST_UNWANTEDEXCEPTION	Exception found in code
42004 AVAST_FOLDERISFILE	Can not create folder > same file exist
42005 AVAST_COMPRESSIONERROR	Error while compressing data
42006 AVAST_OFFLINEFILE	File is not present on drive > migrated to offline device !!!
42007 AVAST_UNKNOWNOBJECT	Object if unknown in current context
42009 AVAST_INVALIDINSTALL	Avast is not installed as expected
42010 AVAST_NOTPACKED	File is not packed
42011 AVAST_OPSTOPPED	Operation was stopped
42016 AVAST_FILENOTSELECTED	File was not tested due engine configuration details
42017 AVAST_INVALIDLICENSE	License string is not valid
42018 AVAST_INPROGRESS	Operation in progress
42019 AVAST_FILEEXCLUDED	File was not tested due to excluded areas
42030 AVAST_SCAN_UNKNOWN	Unknown scanner error
42031 AVAST_OT_UNKNOWN	Unknown internal object type
42040 AVAST_VPS_INVALIDCOMPRESSION	VPS file was destroyed
42043 AVAST_VPS_ILLEGALVPS	VPS file is valid, but updated ilegaly - not using ALWIL Software algorithm
42050 AVAST_PACK_UNKNOWNERROR	Unknown packer error
42051 AVAST_PACK_UNKNOWNVERSION
42052 AVAST_PACK_CORRUPTED
42053 AVAST_PACK_UNKNOWNCOMPRESSION
42054 AVAST_PACK_DECOMPRESSFAIL
42055 AVAST_PACK_COMPRESSFAIL
42056 AVAST_PACK_ENCRYPTED
42057 AVAST_PACK_FILETOOBIG
42058 AVAST_PACK_NOTEMPSPACE
42059 AVAST_PACK_DELETEPARENT
42060 AVAST_REPAIR_NOTREPAIRED	File was not repaired
42061 AVAST_REPAIR_MAYBEREPAIRED	We are not sure if file was repaired (WORD97)
42070 AVAST_MAPI_ATTSKIP_REFERENCE	MAPI attach skipped beause unknown store method
42071 AVAST_MAPI_ATTSKIP_REFRESOLVE
42072 AVAST_MAPI_ATTSKIP_REFONLY
42073 AVAST_MAPI_ATTSKIP_EMBEDDEDMSG
42074 AVAST_MAPI_ATTSKIP_OLE
42075 AVAST_MAPI_ATTSKIP_UNKNOWN
42100 AVAST_POLYVIR_EXCEPTION	Exception in polymorphic viruses code
42101 AVAST_POLYVIR_ERROR	Error in polymorphic viruses code
42102 AVAST_MACROVIR_EXCEPTION	Exception in macro viruses code
42103 AVAST_MACROVIR_ERROR	Error in macro viruses code
42120 AVAST_PACK_ARJ_CORRUPTED	ARJ is corrupted
42121 AVAST_PACK_EXEC_CORRUPTED	DosExec
42122 AVAST_PACK_MAPI_CORRUPTED
42123 AVAST_PACK_MIME_CORRUPTED
42124 AVAST_PACK_STREAMS_CORRUPTED	NTFS Streams
42125 AVAST_PACK_ZIP_CORRUPTED
42126 AVAST_PACK_RAR_CORRUPTED
42127 AVAST_PACK_CAB_CORRUPTED
42128 AVAST_PACK_TAR_CORRUPTED
42129 AVAST_PACK_GZ_CORRUPTED
42130 AVAST_PACK_BZIP2_CORRUPTED
42131 AVAST_PACK_ACE_CORRUPTED
42132 AVAST_PACK_EXEC_UPX_CORRUPTED	WinExec/UPX
42133 AVAST_PACK_ARC_CORRUPTED
42134 AVAST_PACK_ZOO_CORRUPTED
42135 AVAST_PACK_LHARC_CORRUPTED
42136 AVAST_PACK_CHM_CORRUPTED	Windows Help File
42137 AVAST_PACK_CPIO_CORRUPTED
42138 AVAST_PACK_RPM_CORRUPTED	RedHat archive
42139 AVAST_PACK_7ZIP_CORRUPTED
42140 AVAST_PACK_DEB_CORRUPTED	Debian archive
42141 AVAST_PACK_ISO_CORRUPTED	ISO + NeroBurning Rom Image
42149 AVAST_PACK_DECOMPRESSIONBOMB	File is a decompression bomb
42150 AVAST_KEY_EXPIRED	registration key expired
42151 AVAST_KEY_INVALID	invalid key
42152 AVAST_KEY_INSUFFICIENTCOUNT	insufficient number of licenses
42400 - 415 AVAST_RSA_*	RSA errors

[Lisandro]

E-mail Clients that Store Messages in a Single File

Some e-mail clients (e.g. The Bat!) store all messages in a single file. Others store each e-mail as a separate file. If avast finds a virus attached to an e-mail, it will consider the entire file (i.e. all the e-mails in that file) to be infected. Therefore, the entire file will be removed or moved to Chest.

Take care!

This could happen with Thunderbird too.

[Lisandro]

Sometimes, Windows Security Center stop recognizing your antivirus or firewall... The fix could be fairly easy for the most part.

1. Go to control panel and open Administrative tools.
2. Click on services.
3. Go down to Windows Managament Instrumentation.
4. Stop this service. Stop Security Center service too.
    Let them to Automatically start.
5. Exit out of this area to your desktop.
6. Right click Start and choose Explore.
7. Go to c:\windows\system32\wbem\repository.
    Delete this subdirectory ONLY. Let the others there.
8. Exit back to your desktop and reboot your computer (maybe you need to boot twice).

This will rebuild the deleted folder and the database. Once restarted, Windows Security Center should show the correct info and antivirus and firewall should now be recoginized 

Other answers for XP Security Center not detecting antivirus or firewall program could be found here: http://support.microsoft.com/kb/883792.
Other users thik that Windows Security Center should be entirely disabled based on the security flaw in the WMI (http://www.pcmag.com/article2/0,1759,1639276,00.asp).

[moonbeam]

So where is the getting started for dummies link?

I'm starting a new thread promissing a full list of frequently answered questions.
I do not want to discuss them here, so it will be a closed forum.

If you can (or want) to add something, I'll be glad to add to this list.
I'll try to make an index of them bellow...

First of all, see the official avast! 4 FAQs page or browse the forums for help. You don't have to register for browsing and searching. Registration is required only if would like to post a new topic.

The search function of the forum is really a good way to find help. Try!  

Try to read the avast! Help files too, this save a lot of your time and work to help when is really needed. You can left click the 'a' blue icon on the system tray, run avast antivirus. When you see the avast skin, right click it and choose 'Help'.

Some special functions could be found and reached by RejZor's application called avast External Control.zip. Enjoy it!  

[kenpg]

I read in this forum that many people are having problem with using Zone Alarms firewall. I decided to use Comodo Firewall. So, I would like to know if Avast is compatible with Comodo?

I read in the forum about On-access scanner and Resident Scanner. What is the different between them?

In the Links section, there are likes to Anti-spyware programs. From what i know some of these program have resident scanners. Can these anti-spyware program contradict with Avast? Is Avast compatible with them?

[Lisandro]

So, I would like to know if Avast is compatible with Comodo?

Right now, no problems.
From time to time could have be some problem so, before updating Comodo, search to know if the new version has any problem with avast.

I read in the forum about On-access scanner and Resident Scanner. What is the different between them?

Shortly, no one. The resident scanner is the on-access one.

In the Links section, there are likes to Anti-spyware programs. From what i know some of these program have resident scanners. Can these anti-spyware program contradict with Avast? Is Avast compatible with them?

No problems with resident antispywares and avast. The problem is only another antivirus software.
Do you want to use any particular antispyware with avast?

[rhino]

Hi All,

Another new user here.  I'm trying to stop the scanning message from displaying itself evertime I do a web search. I use pro4.7.

Please help!

Thanks,
rhino

[DavidR]

This really should have gone in its own topic in the avast 4 home/pro forum, but better still would have been a forum search as it is frequently discussed.

This option, 'Show detailed info on performed actions' is off by default, so it would appear you have been tweaking avast without knowing the effect it will have.

[Lisandro]

rhino, welcome.
Next time, it's better to start your own thread that using an 'old', informative, one

[xiaochugang]

good job!
I like this article 

[dougjp]

Not sure I should post here or start a thread.

Newbie ?, so beware!  I'm confused by your post on Page 1 " Mail Protection Wizard ". Maybe its outdated, as the post was made in 2004, in which case I suggest the post be updated. I don't see such a wizard anywhere.

In setting up my wife's computer settings, she uses Incredimail and I want to be sure Avast! is "on the job". How can I be sure?

And the various "sensitivity" settings, all of which are normal by default. Is it recommended to increase any of these to high or some custom configuration in any specific module(s). (Sorry I guess that should have been a separate post?)

[DavidR]

You should start a new topic, but first do a forum search for Incredimail as there have been many posts about Incredimail. The MPW is only required for those with win9x, winME OSes, you won't see it in the win2k, winXP, Vista as it isn't required to set-up the email scanning provider. I suggest a browse of the avast help file.

[daddy91]

Hello,
I've been  using avast! with  Windows Vista for several months and everything was OK. Now the green information tab does not pop up any more AND the woman voice telling me "The database has been updated" does not work either. However, "auto update" is still checked for the database update and the program update as well. I have set up the brand new version of avast! (4.7.1085) manually but it is still not working. I've tried to update the database manually, but I don't know whether it is successful for nothing  is reported in the "visulalisateur de journeaux avast!" (French wording)

[DavidR]

Again this should be in a new topic of its own in this forum, http://forum.avast.com/index.php?board=2.0 (click the New Topic button) and we can try to resolve it.