First, download Setup "GAEB-Online 2021" from our web page and install the program on the computer where you will also use the program. If you want to Use language packs you have to buy the pack before and install it after the setup of "GAEB-Online 2021".
The size of the setup is about 50 MB.
If necessary, also read the section Installation .NET Framework 4.7.2.
"GAEB-Online 2021" Single user cannot be installed on a terminal server, there is a special Terminal server version for this.