First off, you will not get the initial email from DVDFab using all email addresses, e.g. Roadrunner email via Spectrum cable blocks it, while Gmail does not. Second, that's a problem because DVDFab logs your IP address, so you cannot make a second request unless you use a VPN or proxy, AND no one else has already requested a license using That IP address.
Next, StreamFab Netflix Downloader 4.0.1.1 is a large program with 5,651 files taking up 690MB, so plan where you want to install it, e.g. I chose a large conventional drive rather than SSD. Note the GOTD download is a downloader that will download the actual installation files.
StreamFab Netflix Downloader 4.0.1.1 signs into your account at DVDFab, so set one of those up if needed -- note password is max 15 characters. Follow the instructions in the readme.txt file and enter the key you get via email at dvdfab[.]cn/exchange-code.htm . Now you can fire up StreamFab Netflix Downloader, click Authorize in the initial pop-up, sign into your account, and then you're all set.