Release Notes for Dr.Web for Microsoft Exchange Server 12.0

Last updated on 11/12/2019


New Features

Installation Notes

Additional Information

Dr.Web for Microsoft Exchange Serveris an anti-virus plug-in designed on the basis of the latest and most advanced antivirus technologies of Doctor Web to protect corporate mail systems against viruses and spam. It flexibly integrates into the system of Microsoft Exchange Server, processes each message and attachment dispatched to the server, and neutralizes all types of viruses and malware. The plug-in checks the mail traffic for viruses, dialers, adware, hacktools, jokes and riskware.

Dr.Web for Microsoft Exchange Server performs the following functions:

Scans all incoming and outgoing messages in real-time

Filters and blocks spam according to custom black and white lists of addresses

Isolates infected and suspicious objects in the quarantine

Filters email messages according to various criteria

Allows configuring groups of users and using specific settings for each group

Sends notifications on detected viruses

Registers incidents in Windows Event log and in the internal event database

Allows setting identical configuration for several mail servers, including clustered servers

Collects statistics

Automatically updates virus databases and components of the program

For Microsoft Exchange Server, Dr.Web for Microsoft Exchange Server integrates its own transport agents into the server transport system, thus, providing Dr.Web anti-virus engine with access to the e-mails and their attachments.

Dr.Web for Microsoft Exchange Server uses virus databases which are constantly supplemented with new records to assure up-to-date protection. Also, a heuristic analyzer is used for additional protection against unknown viruses.

New Features

The compatibility of plug-in of version 12.0 with Dr.Web Enterprise Security Suite 12.0 added.

Installation Notes

System Requirements

To install Dr.Web for Microsoft Exchange Server, your computer should meet the following minimum requirements:




512 MB or more

Disk space

1 GB or more

Operating system

Microsoft Windows Server 2008 x64

Microsoft Windows Server 2008 R2

Microsoft Windows Server 2012

Microsoft Windows Server 2012 R2

Microsoft Windows Server 2016

Microsoft Windows Server 2019

Microsoft Exchange Server

Microsoft Exchange Server 2007 x64 with SP1

Microsoft Exchange Server 2010 x64

Microsoft Exchange Server 2013 with SP1 (Cumulative Update 5 or running Exchange2013-KB2938053-Fixit script is required)

Microsoft Exchange Server 2016 with Cumulative Update 3 (or higher version)

Microsoft Exchange Server 2019


Before installation of Dr.Web for Microsoft Exchange Server, please review the following information on product compatibility:

1.Dr.Web for Microsoft Exchange Server of version 12.0 is compatible only with Dr.Web products of major version 12.0 including Enterprise Security Suite 12.0 or later.

2.Dr.Web for Microsoft Exchange Server is not compatible with other anti-virus software. Installing two anti-virus programs on one computer may lead to system crash and loss of important data. If you already have another anti-virus software installed then it is necessary to uninstall it using the installation file or standard tools of the OS.

3.Dr.Web for Microsoft Exchange Server of version 12.0.6 is not compatible with Dr.Web for Microsoft ISA Server/Forefront TMG.

Dr.Web for Microsoft Exchange Server 12.0 installation

Before installation

Install all critical updates released by Microsoft for the OS version used on your computer (available at

Check the file system with system utilities and remove the detected defects.

Close all active applications.


If you are using Microsoft Exchange Server 2013 with SP1, but without Cumulative Update 5, run the Exchange2013-KB2938053-Fixit script available on the Microsoft official website at before installation to prevent errors of registering the transport agents during the installation.

To install Dr.Web for Microsoft Exchange Server

1.Run the installation file drweb-[version]-av-exchange-windows-x64.exe. The InstallShield Wizard opens on the first window of the installation process.

2.To continue installation, you should read and accept the terms of the License Agreement by selecting I accept the terms in the License Agreement.

Click Next.

3.Stop the Microsoft Exchange Transport service.

To do so, click Open the list of services link, right-click the service in the list and then click Stop. Once the service is stopped, click Next.


Stopping Microsoft Exchange Transport service manually is required to preserve the installation integrity on the server operating under load.

In some cases Microsoft Exchange Transport service may take considerable time to stop.

4.Select the licensing type. You can register your license later, specify the path to the valid license key file or use the key file from the central protection server if Dr.Web Agent is installed on your computer. Click Next.


For correct plug-in operation, specify the path to the drweb32.key license key file.


To register license after installation or to renew it, copy the valid license key file to the program installation folder, then restart Dr.Web for MSP Scanning Service.

5.Before starting the installation procedure, click Installation parameters to configure the following parameters:

Install transport agents—allows you to install transport agents (enabled by default). Enabling this option registers the DRWTransportAgent.dll library and its transport agents (anti-virus and anti-spam) by Microsoft Exchange Transport service.

Install VSAPI—allows you to install the DrWebVSAPI.dll component for scanning via VSAPI (not supported in Microsoft Exchange Server 2013 and later) provided by Microsoft Exchange Information Store service. If this option is enabled, you can also configure additional parameters: enable scanning of the outgoing messages, proactive and background scanning.

You can also enable the transport agents installation and registration monitoring by selecting the Enable transport agents monitoring option. During the installation on Microsoft Exchange Server, transport agents are registered in SMTP transport system by Exchange PowerShell, which does not close automatically, so you need to enter the exit command manually to complete installation.

Click OK.


To avoid transport agents registration errors during the installation, please make sure that the RemoteExchange.ps1 script is installed on Microsoft Exchange Server (the script is located by default in the C:\Program Files\Microsoft\Exchange Server\V14\bin\ folder on Microsoft Exchange Server 2010 or in the C:\Program Files\Microsoft\Exchange Server\V15\bin\ folder on Microsoft Exchange Server 2013).

6.If you are re-installing the application, you may use the saved configuration (if you have selected the corresponding option during its removal) or delete it and re-configure the application after installation. Click Next.

The installation of Dr.Web for Microsoft Exchange Server on your computer starts. By default, program files are copied to %Program Files%\DrWeb for Exchange and %Program Files%\Common Files\Doctor Web folders. the event logs and auxiliary files are copied to %Program Data%\Doctor Web folder.

7.If you have selected the Enable transport agents monitoring option when configuring thee installation parameters, you need to exit the monitoring window after the transport agents are installed and registered. The "Dr.Web AntiVirus Agent enabled" and "Dr.Web AntiSpam Agent enabled" messages in PowerShell indicate the successful agents registration by Microsoft Exchange Transport service. Enter the exit command in PowerShell.

8.Once the installation is complete, click Finish.


The restart is not required: the Microsoft Exchange Transport service starts automatically, resulting the correct operation of the server. However, if the POP3 and IMAP4 supporting services are running on the server, restarting the Microsoft Exchange Transport service may disconnect them from the server transport system. In this case it is recommended that you wait until Microsoft Exchange Transport and the installed application services are started and then restart the Microsoft Exchange POP3 and/or Microsoft Exchange IMAP4 services manually (or restart the computer).

Upgrade to version 12.0

To update Dr.Web for Microsoft Exchange Server to version 12.0, it is necessary to start installation of this version of the application. If a previous version is detected during the installation of Dr.Web for Microsoft Exchange Server of version 12.0, you are prompted to delete it. If you confirm the deletion, the previous version is deleted, then the computer is restarted. Then Dr.Web for Microsoft Exchange Server installation procedure described above starts.

Additional Information

If you encounter any issues installing or using company products, before requesting for the assistance of the technical support, take advantage of the following options:

Download and review the latest manuals and guides at

Read the frequently asked questions at

Browse the Dr.Web official forum at

If you have not found solution for the problem, you can request direct assistance from Doctor Web company technical support by one of the following ways:

Fill in the web form in the corresponding section at

Call by phone in Moscow: +7 (495) 789-45-86.

Refer to the official website at for regional and international office information of Doctor Web company.

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