Restrictions of the unlicensed (trial) version

To use SolFS Driver Edition, you need a license key. If you are evaluating SolFS Driver Edition, you can use a trial key. This key unlocks the same functionality as the licensed keys do (i.e. there are no limitations in the evaluation version), except that the trial key is issued for a period of 60 days. Request the trial key.

Without the license key the drivers don't work at all.