Inno Setup: How do I see the output (translation) of the Inno Setup Preprocessor?

Question

I have an Inno Setup script with preprocessor directives (#defines, #ifs, etc.)

I want to run the Inno Setup preprocessor on my script and

Answer 1

When all else fails look for the answer yourself

Add the following line right at the end of the script.

This will generate a file preprocessed.iss with all macros expanded and #defines, #ifs etc. processed.

#expr SaveToFile(AddBackslash(SourcePath) + "Preprocessed.iss")