The instructions on the "Harman AIR SDK Release Notes" seems to be straight forward:
Steps to follow on Windows
Install Java 1.7/1.8.
Copy the jre7/jre8 folder inside the Java folder. Replace the jre folder inside flash builder installation folder with the copied one.
Restart Flash Builder.
I just copied the content of C:\Program Files (x86)\Java\jre1.8.0_231 into the C:\Program Files\Adobe\Adobe Flash Builder 4.7 (64 Bit)\jre folder and restarted Flash builder, and it didn't run, I got an error message:
Faild to load the JNI shared library "C\program Files\Adobe\Adobe Flash Builder 4.7 (64 bit)\jre\bin\jvm.dll"."
What did I do wrong?