The legacy soft front panel for NI programmable power supplies and SMUs has been deprecated since NI-DCPower 18.1 in favor of InstrumentStudio. InstrumentStudio is a 64-bit soft front panel application that unifies soft front panels for multiple NI instruments, including NI-DCPower instruments, on 64-bit systems and is automatically installed when you install any of the applicable drivers on a 64-bit system. The legacy soft front panel was still included with NI-DCPower for use on 32-bit systems, which do not support InstrumentStudio, or if you chose not to install InstrumentStudio.
NI software released after May 1, 2021 no longer supports 32-bit operating systems. As a result, the legacy soft front panel for NI-DCPower instruments has been removed from the NI-DCPower installer starting with NI-DCPower 21.0, and InstrumentStudio is now the only soft front panel application that is installed alongside the driver.