The data used to store data (connection data to devices, temporary data, statistical data, etc.) is the Firebird database. Download the https://www.firebirdsql.org/en/firebird-2-5/
When you start the installation, select a language, accept the terms of the agreement, select the installation folder (you can default to C: \ Program Files (x86) \ Firebird \ Firebird_2_5), select which components to install (you can leave the default), create shortcuts in the menu, select additional tasks ( can be left by default).