SW category contains Dektec SW mostly dedicated for use in association with Dektec devices. In this case SW license is associated to adapter's Serial Number. You can check what licenses your adapters have by free DtInfo utility.
There are few SW modules, e.g. TS Analyzer Stream Xpert, which can work without Dektec HW devices, where license is provided at USB dongle (abbreviation DGL behind product model).
To install a Dektec licnse (.dtlic files), you can follow these Dektec guidelines.
SDEye is a real-time SDI waveform monitor, DekTec's feature-rich real-time SDI waveform monitoring software. Offers a complete set of tools for real-time and offline analysis of SDI signals at great value for money.