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Silent / Unattended installation

In In addition to the Installation Wizard, you can install ESET Mail Security silently via command line. This installation type does not require interaction and is referred to as an unattended installation.

Run the following command to complete installation via command line: msiexec /i <packagename> /qn /l*xv msi.log


On Windows Server 2008 R2 SP1, the Network protection feature will not be installed.

To make sure the installation was successful or in case of any issues with the installation, use Windows Event Viewer to check the Application Log (look for records from Source: MsiInstaller).


Full installation on a 64-bit system:

msiexec /i emsl_nt64.msi /qn /l*xv msi.log ADDLOCAL=NetworkProtection,RealtimeProtection,^

When the installation finishes, ESET GUI starts and the TRAY_ICON icon is displayed in the Windows notification area.


Installation of the product in specified language (German):

msiexec /i emsl_nt64.msi /qn ADDLOCAL=NetworkProtection,RealtimeProtection,^
SysInspector,SysRescue,Rmm,eula PRODUCT_LANG=1031 PRODUCT_LANG_CODE=de-de

See Language parameters in Command line installation for further details and the list of language codes.


When specifying values for REINSTALL parameter, you must list the rest of the features that are not used as values for ADDLOCAL or REMOVE parameter. It is necessary for the command line installation to run properly that you list all the features as values for REINSTALL, ADDLOCAL and REMOVE parameters. Adding or removing may not be successful if you do not use the REINSTALL parameter. See Command line installation section for the complete list of features.


Complete removal (uninstallation) from a 64-bit system:

msiexec /x emsl_nt64.msi.msi /qn /l*xv msi.log


Your server will restart automatically after a successful uninstallation.