Hi again Pawel
Okay, then you would have to use the Device Driver CD which Installs the NI-VISA driver. The Device Driver CD also installs the VISA Run-time engine!
If you only want to install the VISA Run-time engine you only have to choose the the VISA Run-time support when the option tree is shown for the Deivce Drivers.
Hope this answers your question, regards
Mohadjer