After installing and starting Visum, a warning is displayed:
'HBEFA data warning': 'No or incomplete installation of HBEFA data. Please install the HBEFA data package provided by PTV.'

Running the HBEFA setup fails with an error message:
'Runtime error (at 76:150):
Could not call proc.'

The voluminous HBEFA data are provided with a separated setup, available at:
https://cgi.ptvgroup.com/visionSetups/en/

Notes:
HBEFA 3.1: Only up to and including PTV Visum 16.
HBEFA 3.3: From PTV Visum17 up to and including PTV Visum 18.
HBEFA 4.10: Only from PTV Visum 2020 on.