The good: The final patch for the game has officially SecurRom removed so that the game runs under Windows 7 and up without a no-CD patch.
The bad: The developers never tested it – also most 1.4.3 updates require the previous update being applied 1.3.3 beforehand.
Despite the German description contradicting itself, by first stating the update 1.3.3 is included, and later on claiming 1.3.3 has to be installed first, this patch’s RAR archive really includes everything needed to update the master version 1.1.1 to 1.4.3 in one go!
Furthermore, make sure that all secondary monitors are disabled and when asked by Windows compatibility assistant after closing the game if compatibility mode should be applied, select “Program ran flawlessly”!
Caution! Do not run the game after installation! Apply the above patch first! Trying to run the game before, will cause the Starforce2 copy protection to install and Windows 11 will refuse to boot as a consequence!:

You can work around this by selecting “7) Disable driver signature enforcement” in the Startup Settings Menu (F8) .
After Windows 11 has booted up completely, run StarForce’s Driver Remover Utility.
After the next reboot, Windows 11 will boot up again flawlessly.