ETS1 to ETS3, how to upgrade?

According to the knx.org FAQ, you can transfer a database from an older version of ETS to ETS 3 without any problem. All depends of the version you start from :

From ETS 1 to ETS 3

In this case of a such older version of ETS you must first convert the database into an ETS 2 format:

1. In your ETS 2 directory you will find your current database which is named EIB.DB. Change its name to EIB2.DB (this is just an exemple)
2. Take the old ETS 1 database (also named EIB.DB) and put it in the ETS 2 directory
3. Start ETS 2. The conversion starts automatically
4. When conversion is finished, close ETS 2
5. In the ETS 2 directory move the EIB.DB to the ETS 3 directory c:programme filesetsdatabases
6. Afterwards, if needed, do not forget to rename the other file EIB2.DB back to EIB.DB in the ETS 2 directory
7. Start ETS 3 and open your converted database. It will now be converted again in the ETS 3 format.

From ETS 2 to ETS 3

1. In your ETS 2 directory you will find your current database which is named EIB.DB.
2. Copy the EIB.DB to the ETS 3 directory c:programme filesetsdatabases
3. Start ETS 3 and open your converted database. It will now be converted in the ETS 3 format.

From ETS 3 older version to ETS 3 newer version.

Normally, when installing a newer version of ETS 3 over an older version of ETS 3 the conversion is automatically made. You just need to start ETS 3 and open your previous database. It will be automatically converted.