I am trying to create an x64 setup executable file using SetupBuilder 2023 11.0.7684 on Windows11 / Arm64. No matter what I try both Task manager and Sigcheck identify the setup .exe as x86.

In my Project Definition I have set General Information > Generator Settings > Installer Type to 'Windows 64-bit'

I have also included the following statements in my SB Script:

Code:
Enable x64 Support ()
Set Variable %ARM64% to FUNCTION:Get System Info (ARM64 Status)
Set Variable %X64MODE% to FUNCTION:Get System Info (Installer x64 Mode)
When the setup file is executed both %ARM64% and %X64MODE% return the value '1' .

What else do I need to do to create an x64 executable setup file?