Downloading and installing DIGSI 4.88 is a necessary step to modernize the protection engineering workstation for Windows 10/11 compatibility.

October 26, 2023 Subject: Acquisition, Installation, and Licensing of DIGSI 4.88 Prepared For: Protection Engineers, System Integrators, and Substation Maintenance Personnel

: Siemens sometimes provides a trial version or a "Professional" edition that requires a hardware key (dongle) or a digital license key to activate full functionality after a 30-day period. Key Considerations