I don’t know, I would be surprised if the windows server core docker image had SmartScreen enabled. As far as I know you can’t boot into a Gui with that. So their instructions for disabling it wouldn’t make sense on the docker image.
Here is my dockerfile:
FROM mcr.microsoft.com/windows/servercore:1809
COPY lucee-5.3.6.061-pl0-windows-installer.exe /lucee-installer.exe
Then I open a command prompt into the container and run the installer.
C:\>dir
Volume in drive C has no label.
Volume Serial Number is DAC2-4722
Directory of C:\
09/04/2020 09:43 PM <DIR> inetpub
05/06/2020 11:48 PM 5,510 License.txt
09/04/2020 09:33 PM 183,264,067 lucee-5.3.6.061-pl0-windows-installer.exe
08/06/2020 11:55 AM <DIR> Program Files
08/06/2020 11:53 AM <DIR> Program Files (x86)
08/06/2020 11:56 AM <DIR> Users
09/04/2020 09:52 PM <DIR> Windows
2 File(s) 183,269,577 bytes
5 Dir(s) 21,157,036,032 bytes free
C:\>lucee-5.3.6.061-pl0-windows-installer.exe --help
C:\>
Not shown is the step where I manually renamed the exe back to it’s original name to see if that made any difference.
Also I had no issues with SmartScreen when I used this same installer on several windows machines a few weeks ago.