Updating of virus databases and program components

To detect malicious objects, Dr.Web products use virus databases that contain information about all known malicious programs. Regular updates of databases allows to detect previously unknown viruses, block their distribution, and in some cases to cure previously incurable infected files. Besides virus databases, Dr.Web software components and help documentation are updated as well.

For Dr.Web to update, you need a connection to the Internet or to the update mirror (local or network folder), or to the Anti-virus network with at least one computer that has an update mirror set. Customizing of update source settings can be done on settings page Main Update. The details of customization of Dr.Web updating parameters is located in Update section.

Updates relevance check

To check the relevance of virus databases and program components, open Dr.Web menu  SpIDer Agent icon. In case if updates are relevant, in menu Update is not required is displayed.

Figure 18. Dr.Web menu

Update launch

During the update, Dr.Web downloads all updated files that correspond to your version of Dr.Web and upgrades Dr.Web if a newer version is available.


After an update of executable files, drivers, or libraries, a program restart may be required. In such cases, an appropriate warning displays.

Update launch from Dr.Web menu SpIDer Agent icon

1.Open Dr.Web menu SpIDer Agent icon, then select Update. Depending on virus databases and program components relevance, the name of this menu item can vary.

2.This opens information on relevance of Dr.Web virus databases and other components as well as the date of their last update. Start updating by clicking Update.

Update launch from the command line

Open the Dr.Web installation folder (%PROGRAMFILES%\Common Files\Doctor Web\Updater) and run the drwupsrv.exe file. The list of command-line parameters can be found in Appendix A.

Update logs

You can access the update logs in Statistics section. To access logs open Dr.Web menu SpIDer Agent icon, then open Statistics Statistics page.

Dr.Web updates logs are stored in dwupdater.log file located in the %allusersprofile%\Doctor Web\Logs\ folder.