Ech, problems from the beginning. At the end of the installation ss6.3 I had alert that there are some problems with configuration and advice I should reinstall the program. Then I installed ss6.4 luckily without problems. When I tried to run the game I had this same alert. SS_setup.exe worked fine.
I read some tips how to solve this, but the solutions were too complicated and anyway they didn't work or I'm just too lazy. So I found a new one. I copied the M2TW Teutonic shortcut and changed its value to SS6.3. Now everything works fine. Maybe there were topics with the right answer, but the search engine didn't find the right one. Maybe someone finds it useful.

No Steam, no vista, no win 7, no uac

Before:
Code:
D:\SEGA\M2TW\kingdoms.exe --features.mod=mods/teutonic
After:
Code:
D:\SEGA\M2TW\kingdoms.exe --features.mod=mods/SS6.3
Does anyone know if in SS_launcher.exe are some important informations for the game? Or is it just a shortcut?