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Articles

	avast! 7.x: Cisco AnyConnect VPN Client is not working
Issue Upon starting the Cisco AnyConnect VPN Client it shows an error message box with the text: “The VPN agent service is not responding. Please contact your IT administrator for assistance.” The application then closes without any possibility to establish the connection. Details Cisco VPN software uses a supporting service VPNAGENT - Cisco AnyConnect VPN Agent. This service starts very early

	avast! Mobile 1.x: FAQ - General
avast! Free Mobile Security FAQ - General System Requirements What are the system requirements for avast! Free Mobile Security? Is avast! Free Mobile Security supported on Apple iPhone or Apple iPad? Is avast! Free Mobile Security supported on Nokia phones? Does avast! Free Mobile Security also work on Android tablets? Does avast! Free Mobile Security support Android 4.x (Ice Cream S

	avast! 6.x: Configuring the firewall application rules in avast! Internet Security
How to configure the firewall application rules in avast! Internet Security 6.x ? avast! Internet Security 6.x includes a fully integrated firewall which can be controlled directly from the avast! user interface, where you can also set the application rules governing the network and Internet communication for specific software applications. The firewall will then follow these rules whenever a particular application tries to establish a connection to the Int

	avast! 6.x: FAQ - General
avast! 6.x FAQ - General System Requirements What are the supported operating systems for avast! 6.x ? Download, Installation and Upgrade How to download avast! 6.x ? How to install avast! 6.x ? How to upgrade from avast! 5.x to avast! 6.x ? Is it necessary to uninstall previous versions of avast! before installing avast! 6.x ? License and Registration

	avast! 5.x: Installation of avast! Internet Security fails with the error code 0x800F0203 in the setup log
Issue During the installation of avast! Internet Security 5.x on Windows XP the setup fails and the setup log shows the error codes 0x800F0203 on the last lines, for example: 12:00:00 min/sys NetCfgApi:InstallSpecifiedComponent returned 800f0203 12:00:00 min/sys aswNdis InstallSpecifiedComponent returned 0x800F0203 12:00:00 min/sys Couldn't install the network component, returned 0x800F0203 avast! Internet Security 5.x can be launched after your com

	avast! 5.x: How can I easily adjust the firewall settings in avast! Internet Security to limit external connections and give the maximum level of security?
How can I easily adjust the firewall settings avast! Internet Security 5.x to limit external connections and give the maximum level of security? You should select the option 'PUBLIC/HIGH RISK ZONE' which is suitable when using your computer to connect to a public network and where you want to ensure the maximum level of security. This is the most secure setting and if selected, no incoming communication will be allowed, effectively making your computer comp

	avast! 5.x: Video Tutorials
Are there any video tutorials available? If you are looking for a video tutorials demonstrating the basic steps when starting to use avast! 5.x products please visit the following page: http://support.avast.com/index.php?languageid=1&group=eng&_m=knowledgebase&_a=view&parentcategoryid=616 Conditions avast! Free Antivirus 5.x avast! Pro Antivirus 5.x avast! Internet Security 5.x Operating sys

	avast! 5.x: Configuring the firewall to allow VPN over IPsec in avast! Internet Security
Issue A VPN connection cannot be established over IPsec with the firewall enabled (running) in avast! Internet Security 5.0. Details In order to establish a VPN connection over IPsec through the firewall in avast! Internet Security 5.0, it is necessary that Encapsulating Security Payload (ESP) protocol and also Authentication Header (AH) protocol¹ (depending on VPN configuration) are defined in the packe

	avast! 5.x: Configuring the firewall application rules in avast! Internet Security
How to configure the firewall application rules in avast! Internet Security 5.x ? avast! Internet Security 5.x includes a fully integrated firewall which can be controlled directly from the avast! user interface, where you can also set the application rules governing the network and Internet communication for specific software applications. The firewall will then follow these rules whenever a particular application tries to establish a connection to the Int

	avast! 5.x: FAQ - General
avast! 5.x FAQ - General What are the supported operating systems for avast! 5.x ? How to download avast! 5.x ? Is it necessary to uninstall avast! 4.x before installing avast! 5.x ? How do I register avast! Free Antivirus 5.x ? How to insert the license file into avast! Pro Antivirus 5.x or avast! Internet Security 5.x ? What should I do if avast! 5.x rejects purchas

	Error Message: '421 concurrent connections limit in avast exceeded'
Issue When the number of concurrent connections in avast! Internet Mail scanner is reached, you may recieve following error message: 421 concurrent connections limit in avast exceeded Details Limit of concurrent connections in avast! Internet Mail is common for all threads scanned by this provider - both e-mails (protocols SMTP, POP3 and IMAP) and news (protocol NNTP). This problem can be caused by any application capable of opening more concurrent connections using the protocols listed above

	Required firewall settings to enable updates of Avast
What are the required firewall settings to enable updates of Avast Home and Professional Edition?Avast Home and Professional editions use http protocol port 80. Therefore this port must be open in your firewall.If you do not have an Internet connection you can carry out an offline update on our website in the section 'VPS updates'.More detailed information about the firewall settings for avast updates can be found in the following article in our knowledge base.

	Defining update addresses in the firewall settings
HOW TOConfigure the firewall to allow avast! to updateDESCRIPTIONSome firewalls (especially within companies) are configured to deny all traffic which is not on their list. This may cause a problem during an update of avast! antivirus. The servers used to update avast! antivirus are listed and continuously updated in the file C:\Program Files\Alwil Software\Avast4\Setup\servers.def therefore any change made to the file will not be effective. Servernames are represented by domain names (eg. download606.avast

	Cannot login into web mail services (Yahoo mail, Hotmail, etc.) in combination with Zone Alarm
Issue I use Zone Alarm firewall and have troubles logging into my web mail service (Yahoo mail, Hotmail, etc.) What can I do to solve this? Details Zone Alarm's cookie blocking feauture currently does not work properly with WebShield's transparent proxy. Having both features turned on may cause login problems when accessing pages that require cookies. Solution 1 Under certain conditions, it is necessary to bypass the Web Shield's transparent proxy and set things up manually by the following s

	WebShield HTTP proxy
How do I manually configure the WebShield HTTP proxy? (e.g. because of ZoneAlarm Privacy Control or because running under Windows 95/98/ME)Answer: Under certain conditions, it is necessary to bypass the WebShield's transparent proxy and set things up manually. This includes the following situations: If you are using ZoneAlarm with Privacy Control turned on. The current version of WebShield's transparent proxy is incompatible with ZA's Privacy Control features. - OR - If you are using Windows 95/98/ME. WebSh

	Error message:
Whilst trying to update avast!, I get an error message stating: "Server is down". How can I resolve this problem?SolutionIf you see this error message whenever you try to update manually, check if: Your firewall allows avast! and its components to access the Internet (see also this FAQ) Your proxy server is set properly (SETTINGS -> UPDATE (BASIC) -> DETAILS -> PROXY -> SPECIFY PROXY SERVER)

	error 1006 (000003EE) corrupt file
SymptomsI have WinXP pro, and am trying to install avast! Home Edition but I get the following error: error 1006 (000003EE). I tried download a few different types of exe installation files but it always says: you have a corrupt file please download again. Cause/DetailsThis problem can be caused by the software ‘Nvidia firewall’ that comes for example with the motherboard chipset driver CD. When installed it causes corrupted downloads and installs i.e.: cannot perform online anti-virus scans. Soluti

	Freezing avast!
SymptomsI am running avast! Professional on WinXP. I start the Avast! from the tray menu. The splash screen shows up and the memory test begins, and it then says the program will continue. The splash screen disappears and then nothing happens. Cause/DetailsThis can happens when you are using firewall software. SolutionTry running ashsimpl.exe and ashsimp2.exe to grant access for future usage.

	avast! and firewall software
What should I know about using avast! 4 in combination with a firewall?SolutionYou may receive warnings from your firewall once you install avast!, because avast! tries to connect to our servers to look for virus definition file updates and for program updates. It also acts as a transparent proxy. You should allow avast! to connect, otherwise the update feature will not work or your will not be able to browse internet websites. Here is some useful information: • The components of avast! 4 that should be all

	Configuration of the Web Shield HTTP proxy
Issue How do I manually configure the Web Shield HTTP proxy? (e.g. because of ZoneAlarm Privacy Control or because running under Windows 95/98/ME) Details Under certain conditions, it is necessary to bypass the Web Shield's transparent proxy and set things up manually. This includes the following situations: If you are using ZoneAlarm with Privacy Control turned on. Zone Alarm's cookie blocking feauture currently does not work properly with WebShield's transparent proxy. Having both feat

	I can no longer browse the Web after avast! installation.
IssueI have installed avast! and I can no longer browse the Web. How can I solve this?SolutionCheck your firewall configuration. For the correct operation the Web Shield process (ashWebSv.exe or aswWebSv.exe) needs a permission to access the Internet on TCP port 80 and a permission to act as a server and accept incoming connections from localhost (the local machine) on TCP port 12080.

	Message: 'avast! Web Scanner (ashWebSv.exe) is trying to access the Internet'.
IssueAfter updating to version 4.6 my firewall warns me that avast! Web Scanner” (ashWebSv.exe) is trying to access the Internet. Is this correct?DetailsThis is correct. Web Shield provides all Web access for the browser. For it to work correctly you must allow this access in the Personal Firewall configuration.SolutionWeb Shield needs the same access rights as your browser - especially outgoing connection to the TCP port 80. If your firewall protects local communication you must also grant Web Shield proce