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Installation & requirements

Before Installation


The ETS4 uses newest Microsoft© technologies as .NET Framework 4.0 or SQL 2008 Server.

  1. We strongly recommend checking all necessary system requirements (see system requirements) in advance and update your PC if necessary.
  2. Please also check the corresponding hardware requirements (see system requirements);   eventually it is necessary to extend your PC hardware.
  3. Take a security backup of your important (ETS) data in any case.
  4. Execute the ETS4 setup.    


The ETS4 can be installed in parallel to an existing ETS3 on a computer

During Installation


The installation with preconditions may exceed 30 minutes and under certain preconditions the installation on Windows 8 might take more than one hour.

After Installation

What happens with my ETS3 projects and product databases?

The Installation of ETS4 does not change such ETS3 data.

What happens with my ETS3 licenses?

The installation of ETS4 does not remove ETS3 licenses, therefore ETS3 will still be licensed.

System Requirements for ETS4

The following characteristics are the minimum hardware and software requirements in order to install and run ETS4:

Operating Systems Hardware Interface to KNX
Windows Vista; SP2 (x32/x64)

Windows 7; SP1 (x32/x64)

Windows 8; (x32/x64)
Windows 8.1; (x32/x64)

Windows Server 2003; SP2 (x32/x64)
Windows Server 2003 R2 SP2 (x32/x64)

Windows Server 2008; SP2 (x32/x64)
Windows Server 2008 R2; SP1 (x64)

Windows Server 2012 (x64)

CPU: ≥ 2 GHz
RAM: ≥ 2 GB
HDD: ≥ 20 GB
RES: ≥ 1024 x 768
Remark: To achieve optimal results it is strongly recommended to use at minimum 4GB
RAM and a higher screen resolution!

RS232 (not on x64; not on server OS);
IP; ( iETS embedded server (EIBLib/IP) or KNXnet/IP)
Remark: A "USB to serial adapter" or LAN (Ethernet) to serial
adapter" is not released!

A release of ETS4 with above mentioned operating systems in a virtual environment (such as Virtual PC®; VM Ware®) and/or Remote Desktop is not foreseen. On these systems you work at your own risk. Warranty and support will not be given by KNX Association in this case.

Remark:  Because of system requirements (e.g. SQL server), ETS will always be installed on the drive containing the operating system (normally C). 

Background:  From ETS4 required software components (e.g. a .NET framework) will be not installed on Windows 8 via the setup anymore. Instead of this the setup notifies the OS (Windows 8) the need of these components (amongst others hence as some components are not able to install separately anymore). Windows 8 loads these components over the internet or from a DVD setup and installs them. On active windows update and available internet connection the OS searches afterwards for updates of these components and install them. During this time the running ETS4 setup is interrupted. 

Corrective:  If you do not want to wait so long, please disable before ETS4 installation temporary the internet access respectively unplug the LAN cable to prevent on the updates in the meanwhile.

ETS4 and Windows 10: The ETS4 is not released on Windows 10

  • The ETS4 setup for an initial installation is not released for Windows 10. ETS4 uses SQL 2008 server component from Microsoft, Microsoft quits the support of SQL Server 2008 on Windows 10, see https://support.microsoft.com/no/kb/2681562
  • Based on the subject above we also cannot release the ETS4 when updating from W7/W8.1 to W10 on the same computer.