This is a spurious error, which we haven't been able to find the explanation for. One "solution" is to reattempt the installation, usually it works on the 2nd or 3rd attempt...
It's not really necessary to do that, fortunately. ATK itself is properly installed at the point the installer misbehaves, what is left is just to set up the uninstaller (a minor issue if you don't have one), install the Visual C++ runtime, and set up the license.
The runtime is that same for 11.2 and 10.8, so it's probably already installed. If not, i.e. if you start VNL and it doesn't work properly (after the license is set up in the next step), then you can always install the runtime manually by going to the installation directory and run (double-click) D:\Program Files\Quantumwise\atk-11.2.3\vcredist_x86.exe.
The license is the only remaining point to handle. If you are using a floating license server, what you need to do is define the system environment variable QUANTUM_AUTOMATIC_SERVER_DISCOVERY. Set it to the value 1. After that, open a terminal window (Start Menu>Run>"cmd") and try to run "atkpython". If all is well, you should enter interactive mode; if not, check the error message. (To leave interactive mode, type "exit()" or hit Ctrl+D, and then Enter.
If you have a license file, you would instead set the variable QUANTUM_LICENSE_PATH to the path of the file.
I trust you are familiar with editing the environment variables? If not, and otherwise, let me know if get ATK running with these steps (it's really only the license you need to set up).
