Just documenting this in case someone runs into this frustrating error.
The issue was due to the space in the folder name for my install folder above. I used my phone to take a video of the window popping up, then went through the video frame by frame. I saw a reference to "C:ODAC", which is not my install folder.
I renamed my folder to C:ODACInstaller (no space), and the setup wizard starts up.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…