The ISO file is typically distributed by Siemens as a which allows users to test the software for a limited period (usually 21 days) before requiring a valid license.
: This version is compatible with Windows 10 and Windows 11 , as well as various Windows Server editions. SIMATIC_STEP7_V57.iso
You can find official downloads and detailed technical information on the Siemens Industry Online Support (SIOS) portal. The ISO file is typically distributed by Siemens